| 词汇 | particulate |
| 释义 | particulate noun[ Cusually plural ] environment specializeduk /pɑːˈtɪk.jə.lət/ us /pɑːrˈtɪk.jə.lət/ an extremely small piece of dirt, especially one produced by road vehicles, that causes pollution: （尤指汽车发动机排出的引起严重污染的）微粒，颗粒 Biodiesel produces up to 50 percent fewer particulates. Studies have linked exposure to particulates in air pollution with increased risk for heart disease. Masks are available to filter out the dangerous particulates in the air. Most fine particulates result from human activity, usually from burning oil, coal, diesel or wood. Boilers often have very short chimneys, which limits the dispersion of the smoke and its particulates. Environmental issues agroecology air pollution anoxia anoxic anti-conservation deforestation dumping ground eco-audit eco-footprint efficiency energy conservation energy security environmental justice environmentalism reduce, reuse, recycleidiom rewilding runoff scrapyard scrubber sequester particulate adjective environment specializeduk /pəˈtɪ.kjuː.lət/ us /pəˈtɪ.kjuː.lət/ consisting of small pieces of dirt, especially ones produced by road vehicles, that cause pollution: health risks posed by particulate matter Particulate pollution is unhealthy at the levels recorded last summer. Fine particulate matter and ground-level ozone levels have shown no appreciable decrease. Natural-gas generators have lower particulate emissions. The friction creates microscopic particulate debris. Environmental issues agroecology air pollution anoxia anoxic anti-conservation deforestation dumping ground eco-audit eco-footprint efficiency energy conservation energy security environmental justice environmentalism reduce, reuse, recycleidiom rewilding runoff scrapyard scrubber sequester particulate | American Dictionaryparticulate adjective[ not gradable ] us/pərˈtɪk·jə·lɪt, pɑr-/ science relating to or consisting of very small pieces of a substance Examples of particulateparticulate Both papers report on the immediate leakage of particulate matter, which is evidence for ruptures in the cell walls. Let us now consider a dusty plasma whose constituents are electrons, ions and negatively charged micrometre-sized heavy dust particulates. Note that particulate emissions from the chemical plant are significantly higher than emissions from the iron foundry. The smaller amylopectin granules have a more irregular surface and particulate internal content. These existing boilers are old and hence require the burning of huge quantities of coal, which in turn leads to very high particulate emissions. Second, emissions are converted to an average rate of air concentration of particulates, using a simple dispersion model. It is this portion of the apparatus that enables us to control the state of the particulate material as it enters the chute. Laboratory-based mineralogical investigations involved examination of thin- and particulate sections for the heavy mineral contents and sedimentary textures. First, it is assumed that the mortality effects of suspended particulates are confined to the municipality in which they are emitted. This variable provides a measure of the average particulate concentration in the air (airborne dust) of each country's cities. They contribute 16 per cent of all particulate matter pollution, and 43 per cent of all sulfur dioxide. This burning of high-ash coal produces large amounts of particulate matter. In 1983, the environmental standards were set for other major pollutants: carbon monoxide, nitrogen dioxide, fine particulates, and ozone. We recognize that the presence of the particulate phase manifests itself as a source term, which indicates the local production or destruction (cancellation) of vorticity. It suggests that their role in the release of nutrients from particulates may be essential for epiphytic bromeliad growth. 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. Collocations withparticulateparticulateThese are words often used in combination with particulate. Click on a collocation to see more examples of it. airborne particulate As a result, levoglucosan is often used as a chemical tracer for biomass burning in atmospheric chemistry studies, particularly with respect to airborneparticulate matter. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. fine particulate The rest is dispersed with the waste gases as very fineparticulate matter. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 particulate matter Both papers report on the immediate leakage of particulatematter, which is evidence for ruptures in the cell walls. 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. See all collocations with particulate |
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