| 词汇 | example_english_catalyst |
| 释义 | Examples of catalystThese examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. Notably, the reaction rates attained by such catalysts are moderate, usually <1 minx1. Here the pitched roof and dark finish appear on one level to be conventional usages but on another as catalysts for new associations. Two of the major catalysts were increasing urbanisation and industrialisation. When the complexity of the organic molecules pool increased, more sophisticated catalysts, including ribozymes and protein enzymes, could be selected. The original catalysts may have been based on clays, various metals, inorganic and organic species that happened to be present and possess some catalytic activity. Peptidyl-prolyl cis-trans isomerases, a superfamily of ubiquitous folding catalysts. They weaken policy regimes, create conditions favorable for change, or act as catalysts for change. The separation of binding from input makes it possible to write agents such as the catalysts mentioned in the introduction. Clays and metal sulphides have been proposed as mineral catalysts that could have promoted the first prebiotic chemical reactions. The adjacent possible is clearly influenced by the environment, which contains chemical partners, energy and the catalysts. They are often used as catalysts in nanotechnology, and may bind polymers like proteins, lipids, and nucleic acids creating assemblies reminiscent of life forms. Processes in chemical evolution must have involved several catalysts multifunctional in nature. Homing endonucleases : structural and functional insight into the catalysts of intron/intein mobility. The results presented in this paper are relevant in both cases, as they refer to the effect of metal ions as catalysts of the condensation of nucleotides. No exogenous oxidation catalysts were added. Combinatorial chemistry consists of methods to rapidly make large numbers of chemicals with new structures, which are then screened for new catalysts, materials, sensors, and drugs. Both the lipid phase and the lipid-water interface act as catalysts. Participants generally reported two catalysts to diagnosis. Different reactions need different catalysts. However, the actual realization of this capacity is determined by the primordial environment, which contains chemical partners, the energy sources and the catalysts needed to promote the reactions. In this latter view, they do not merely appear together on the historical stage, but act as mutual catalysts, and so are mutually constitutive over time. With widely diffused minerals and metal oxides as catalysts, formamide affords all the precursor nucleic bases: purine, adenine, hypoxanthine (bioisomer of guanine), cytosine, uracil and thymine. The use of peptides, and ultimately proteins, as catalytic biomolecules could serve the dual roles of broadening the scope of catalysis and of regulating existing catalysts. Acceleration of change : catalysts in brief therapy. Cars equipped with catalysts can run only on unleaded petrol. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 They should intrinsically act as vital catalysts to regional development and investment. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 By the end of this year, the fitting of catalysts to new cars will be mandatory. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 If we can use those as biological catalysts, we can detoxify vast amounts of industrial waste. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 There may be catalysts within five to 10 years which will be able to remove or reduce nitrogen oxide emissions from a diesel engine. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 However, catalysts have their own disposal problems and produce some pretty horrible wastes. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 Where catalysts are used, the reduction could be even greater if the catalysts are properly maintained. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 We are people who could best do this; we could act as catalysts in this area. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 I have made it absolutely clear that catalysts—either oxidation or three-way catalysts—have an important part to play in protecting the environment. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 Such catalysts are capable of dealing with unburnt hydrocarbons, carbon monoxide and nitrogen oxides, and of converting them into harmless carbon dioxide, water and nitrogen. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 Our latest estimates are that controlled three-way catalysts would add £370 to the purchase cost of a car before tax. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 Catalysts are also a key factor in the development of future fuel cell technology. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 Further technical developments in catalytic reduction of methane may be possible but the efficiency and cost of such catalysts are not fully known. From Europarl Parallel Corpus - English On the question of money, these sums seem very small, but we must look on them as catalysts. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 Only pure electric vehicles have no need for catalysts. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 The nitrogen oxides are not removed in this process; they are in fact catalysts, and it is the ozone which is the dangerous chemical produced. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 There are disadvantages of which we are aware, with the deterioration of catalysts. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 Is it not a fact that in 1990 new cars with engine capacities of over two litres will have to have three-way catalysts? From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 I should like to see local authorities acting as local catalysts. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 If we can in some way as a family act as catalysts and bring people together, our presidency will be worthwhile. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 Such buildings were often the centre and catalysts of community activity when they were first built. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 Such groups are important as they act as catalysts in starting open discussion where it is taboo to discuss such matters. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 We need catalysts in each area to bring together the various parts of the community which could help new businesses to get moving. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 The directive will require catalysts for all types of cars from 1992. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 Although the directives will mean the fitment of catalysts to all new cars, they are defective in two particular areas. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 Three-way catalysts are already available for all classes of vehicle. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 By contrast, the costs of applying three-way catalysts to all new cars are estimated to be well in excess of £1 billion a year. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 However, electronic controls are likely to be used extensively in the future to reduce emissions, in conjunction with catalysts. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 Whether we have cars with three-way catalysts or even one-way catalysts, we shall all use unleaded fuel in our new cars soon. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 There is much uncertainty about the cost of maintaining the catalysts and their lifespan. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 We shall have moved back one step on fuel efficiency by moving to this apparent compulsion for three-way catalysts. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 I wholeheartedly support the need to invest in research and innovation in these technologies, which are important catalysts of competitiveness, growth and employment. From Europarl Parallel Corpus - English The year 1832 was the date of one of the great catalysts in parliamentary representation. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 The availability of premises is one of the catalysts which persuades a man to start a business. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 We shall use loans and grants as catalysts of change and not as props for continuing decay. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 To work effectively those catalysts must have certain characteristics. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 A much smaller percentage of diesel engines compared with petrol engines are currently fitted with catalysts, which perfectly illustrates a particular problem with diesel vehicles. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 Lead-tolerant catalysts would have no effect on lead emissions, and lead filters would achieve a smaller reduction than the course we have chosen. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 The performance of catalysts in reducing pollutant emissions when vehicles are cold-started and over the first two kilometres or so is a particular problem. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 Catalysts have to be expensively and regularly maintained. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 The new directive will allow enterprising manufacturers to continue to follow the lean-burn route, but it will not prevent the use of catalysts. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 We have at present no intention to set a standard which would require the use of oxidation catalysts. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 One of the principal catalysts was the poll tax legislation. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 Such an incentive would encourage the earlier and wider use of catalysts. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 We have given a signal that we want new generation catalysts and filters for particles that are a danger to health. From Europarl Parallel Corpus - English They are the catalysts which determine the rate at which the country's business proceeds. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 I have a lot of respect for the party, but their part as catalysts of tragedy is too great for mere oblivion. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 In the meantime we have a complex programme to introduce cleaner vehicles and cleaner fuels, and to improve engine technology, including the catalysts. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 In the national interest, there must be some form of training catalysts. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 Although we may not have been asked to do that, certain catalysts could encourage the process. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 Nearly all the most effective catalysts for change were applied at middle and junior management levels, with directors supporting but not directing the process. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 The chemical industry is one of the key catalysts of wealth creation for our country in this century. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 The technical case for supporting three-way catalysts rather than the directive's compromise is compelling. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 We do indeed expect that some manufacturers of medium cars will decide to fit three-way catalysts to particular models. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 A 5 g standard would effectively mandate full three-way catalysts on all small cars. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 In the conclusion to the debate, it appeared that he was ruling out all catalysts, but he afterwards made it clear that he did not mean that. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 Talk, goodwill and interest are not enough; we need serious financial and regulatory catalysts to increase research and roll out the development of pilot projects using cutting-edge renewable technologies. From Europarl Parallel Corpus - English The available evidence suggests that, at least in the short term, we should concentrate on the use of the best ultra-low sulphur diesel fuel, catalysts and particulate traps. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 The minerals of today and, particularly, the minerals of tomorrow are not the source of crude metals: they are now the source of exotic substances, and, in particular, catalysts. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 Delivery is at the heart of our agenda for transforming public services and e-government is one of the most powerful catalysts we have for achieving that transformation. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 First, the standards for medium-sized cars, which are those between 1400 cc and 2000 cc, are not strict enough to require the fitting of the most effective three-way catalysts. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 The programs are designed to simulate and characterise the behaviour of catalysts and sorbants, such as zeolites and other metal oxide systems. Further, the language of local institutional development uses notions like animation, motivation, or catalysts which convey the idea of retrieval of latent community capacities. A variety of substrates such as active metal surfaces, clay minerals or zeolites could act as surface catalysts. The evolution of catalysts had to be in parallel with the evolution of the molecular species reacting. Possibly evolution has conserved some of the primitive catalysts by integrating them as cofactors of more evolved molecules. Three possible scenarios are discussed extensively: mutually reinforcing flight from the world ; conflicting religiopolitical agendas ; and prophetic catalysts moving in tandem. The catalyst's route is an easy pass through the mountains. Particular components of the atmosphere may act as catalysts; speeding-up chemical reactions that would not otherwise occur so rapidly. Experiments with various terrestrial solids (iron, clays, aluminium-silicates) have shown that they could act not only as surfaces of support, but also as catalysts. Accordingly, evolution of efficient catalysts may represent an essential prerequisite for the origin of life on terrestrial planets. As the complexity of the ensemble of primitive biomolecules was very low, primitive catalysts had necessarily to be very simple molecules or ions. He has demonstrtated that particles of titanium dioxide could act as catalysts in the sunlight helping to destroy any organic matter such as dead insects. Chemists have tried more than 2500 different combinations of metals and metal oxides as catalysts for this reaction. Without the cofactor, these enzymes cannot function as catalysts. These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. |
反思网英语在线翻译词典收录了377474条英语词汇在线翻译词条，基本涵盖了全部常用英语词汇的中英文双语翻译及用法，是英语学习的有利工具。