| 词汇 | example_english_calcium-carbonate |
| 释义 | Examples of calcium carbonateThese 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. Occasional interbeds of fine-grained carbonate may reflect gravity input of peri-platform ooze, rather than sea-floor preservation of calciumcarbonate. This finding had considerable public health implications and resulted in calciumcarbonate being added to wartime flour in order to prevent rickets. Secreted products among the non-pogonophoran annelids range from mucus to calciumcarbonate. Each 30 seeds received 1 ml of inoculum and were pelletized with calciumcarbonate, just before sowing. The primary fossilized mineral(s) are calciumcarbonate enriched with magnesium. They found that calciumcarbonate was usually deposited around the grafted test which then adhered firmly. Calcium phosphate appears to be much less soluble than calciumcarbonate in salt solutions and more complex biological media. The carbon dioxide would eventually precipitate as calciumcarbonate and the hydrogen sulphide would react with iron and form pyrite. These calciumcarbonate inclusions must have caused big problems for the medieval potters, because during the firing process they cause cracking of the clay. It is worth noting that although calciumcarbonate is rare in both deposits, it is preserved with various colours. Continuous, tabular cementstone horizons are composed of calciumcarbonate. The opposite scenario, in which respiration prevails, could yield a variety of minerals including calciumcarbonate as a permanent signature. Calcium sulphate, phosphogypsum and calciumcarbonate in the amelioration of acid subsoils for growth. Recent work, however, has led to the theory of canalithiasis34 in which calciumcarbonate debris floats freely in the posterior canal and has a 'plunger' effect when moved under gravity. The role of the calciumcarbonate-calcium phosphate switch in the mineralization of soft-bodied fossils. Yet, when one examines those invertebrates that have skeletal systems, one finds that they are almost always composed of calciumcarbonate, whereas those of vertebrates are composed of calcium phosphate. Once the phosphorus level decreases below this value, the aluminium salt should be discontinued and calciumcarbonate or calcium acetate, given with meals, should be started. After collection, the specimens were washed, dabbed dry and weighed (= wet biomass); they were then preserved in 70% neutralized alcohol to prevent the calciumcarbonate in the shells dissolving. Calciumcarbonate is the primary fossilization mineral. Unlike any of the other samples, there is a calciumcarbonate cement that runs through the sample in large veins and comprises y19 % of the total sample. It may contain as little as 85 per cent, calciumcarbonate or as much as 99 per cent, depending upon its origin. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 In 1958 there was in our farm lands an estimated deficiency of calciumcarbonate of 30 million tons. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 It is mostly sea shells, is sand rich in calciumcarbonate. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 Calciumcarbonate, at the rate of 14 oz. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 A good example is calcium, which is not readily absorbed and which is present in the soil most commonly as lime—that is, calciumcarbonate—or as calcium phosphate. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 They form through deposition of calciumcarbonate and other minerals, which is precipitated from mineralized water solutions. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Higher saturation states mean higher concentrations of carbonate and calcium relative to the solubility of calciumcarbonate, favoring shell deposition. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The walls of the cave are smooth and dark, with rare incrustations of calciumcarbonate appearing. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. It indicates whether the water will precipitate, dissolve, or be in equilibrium with calciumcarbonate. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The concentration of calciumcarbonate is between 54 and 78 milligrams per liter. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Synthetics would include engineered molecules, calcined clays, blanc fixe, precipitated calciumcarbonate, and synthetic pyrogenic silicas. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Calcium perchlorate can be prepared through the heating of a mixture of calciumcarbonate and ammonium perchlorate. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Urea, lime, and calciumcarbonate reduce the number of fungal structures and spore production. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. During calcification two carbon atoms are taken up and one of them becomes trapped as calciumcarbonate. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Calciumcarbonate often makes up around 10% of the volume, whilst many varied sized shells from granular to very large pebbles. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Calcium and carbonate ions then react to form calciumcarbonate, which then precipitates leaving behind fresh water. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. It is manufactured by the neutralization of gluconic acid with lime or calciumcarbonate. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. In addition, serpulids secrete tubes of calciumcarbonate. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. In mineral form, calciumcarbonate can exhibit a wide range of hardness depending on how it is formed. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The surface soils are underlain by a hard calciumcarbonate caliche layer several inches thick. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. On top of this layer lie calciumcarbonate crystals called statoconia or otoliths. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. In geology, it is used as a stain to indicate the calciumcarbonate minerals, calcite and aragonite. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. When the solution comes into contact with air the chemical reaction that created it is reversed and particles of calciumcarbonate are deposited. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The colonys rigidity and purple color come from calciumcarbonate spicules throughout the polyps tissues. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The calciumcarbonate in the water is due to rainwater which passes underground. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. They are supported by an internal skeleton of calciumcarbonate plates referred to as vertebral ossicles. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The type found deposited on the heating elements of water heaters has a main component of calciumcarbonate. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The process takes emissions from the power station smoke stacks, extracts and uses a chemical process to turn it into calciumcarbonate. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The shell of a snail is constructed of calciumcarbonate, but even in acidic soils one can find various species of shell-less slugs. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. By studying the calciumcarbonate in coral rock, past sea surface temperature and hurricane information can be revealed. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The species appears to require environments that have high humidity and acidic soil (soil with no calciumcarbonate in it). From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Scleractinian skeletons are composed of a form of calciumcarbonate known as aragonite. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The group includes the important reef builders that inhabit tropical oceans and secrete calciumcarbonate to form a hard skeleton. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. For example, aragonite and calcite will have different solubility products even though they have both the same chemical identity (calciumcarbonate). From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Fish otoliths accrete layers of calciumcarbonate and gelatinous matrix throughout their lives. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The calciumcarbonate that the otolith is composed of is primarily derived from the water. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. This membrane is weighted with calciumcarbonate-protein granules called otoliths. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. This is in contrast to a calcite sea in which low-magnesium calcite is the primary inorganic marine calciumcarbonate precipitate. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. If left untreated, the increased alkalinity can lead to the formation of crystals of struvite, calciumcarbonate, and/or apatite. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The latter uses iron sulfides (pyrite and greigite) for the structure of its dermal sclerites (hardened body parts), instead of calciumcarbonate. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Hot springs comprising significantly softened silica may deposit it to form siliceous sinter, whereas those comprising softened calciumcarbonate deposit spongy-looking calcareous rock called tufa. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. It is created by the reaction of lactic acid with calciumcarbonate or calcium hydroxide. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. In the alkaline seawater environment, the chemical denudation process of calciumcarbonate proceeds rapidly, creating wide, strangely shaped marine notches. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Cue chalk is not actually chalk (calciumcarbonate) at all, but a compound of silica and aluminium oxide. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Fillers, such as calciumcarbonate, usually have a weak charged surface. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The leaves may contain cystoliths, calciumcarbonate concretions, seen as streaks on the surface. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Among the 21 most important fillers, calciumcarbonate holds the largest market volume and is mainly used in the plastics sector. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Calcareous ooze is a form of calciumcarbonate derived from planktonic organisms that accumulates on the sea floor. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The internal organs are enclosed in a hard test or shell composed of fused plates of calciumcarbonate covered by a thin dermis and epidermis. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Along with calciumcarbonate, other chemicals are deposited in trace amounts. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. These were accumulations of calciumcarbonate secreted in the empty chambers of the shell, used for ballast and control of buoyancy. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Temporary storage occurs in the crop where food and calciumcarbonate are mixed. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. It forms calciumcarbonate deposits within its cells which serve to strengthen the thallus. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. This suggests it was a slightly unstable material such as aragonite, a form of calciumcarbonate. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. These tubes form when calciumcarbonate or calcium sulfate dissolved in the water comes out of solution and is deposited. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. One of the main component of biorock is magnesium hydroxide, another is calciumcarbonate. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The tube strongly simulates the shell of certain serpulid sea worms or helicoid land snails and contain no less than 75% calciumcarbonate. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The ends of the tubes were plugged with sodium silicate/calciumcarbonate cement or paper end plugs. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Calciumcarbonate is more soluble at lower temperatures and at higher pressures. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Most carbon in the terrestrial biosphere is organic carbon, while about a third of soil carbon is stored in inorganic forms, such as calciumcarbonate. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Calciumcarbonate is essentially insoluble in sea surface waters today. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. In ceramics/glazing applications, calciumcarbonate is known as "whiting", and is a common ingredient for many glazes in its white powdered form. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Calciumcarbonate changes the texture of soil by cementing particles. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Two sets of experiments demonstrated that the soil contains 3-5% calciumcarbonate. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Most have calcareous tests, composed of calciumcarbonate. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The basic soil, along with calciumcarbonate from the caliche, can prevent plants from getting enough nutrients, especially iron. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The weight ratio of the charge is 2:2:1 of salt cake, calciumcarbonate, and carbon respectively. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Throughout the fossilization process the calciumcarbonate composing the eggshell generally remains unchanged, allowing scientists to study its original structure. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Arthropods are characterized by their jointed limbs and cuticles, which are mainly made of -chitin; the cuticles of crustaceans are also biomineralized with calciumcarbonate. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Calciumcarbonate is vital to calcifying organisms such as shellfish, corals, and coccolithophores (a type of phytoplankton). From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The heated water percolates upwards, dissolving calciumcarbonate from limestone deposits on its way by. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Rainwater (which percolates into sinkholes in the limestone), is enriched with dissolved calciumcarbonate. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The most common paints were red ochre, red lead, soot, calciumcarbonate, and other earth colours, which were bound with fat and water. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. It is notable for its distinctive turquoise coloration, a phenomenon caused by a chemical reaction between sulfur and calciumcarbonate. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. 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. |
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