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Collins English-Chinese Dictionary
- calcium
['kælsɪəm]
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-
1.
noun
[u]
钙
Comprehensive English-Chinese Dictionary
- calcium
[ˈkælsɪəm]
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-
1.
n.[u]
[Chemistry]
钙
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Vitamin D is necessary to aid the absorption of calcium from food.
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维生素D是帮助从食物中吸收钙质必不可少的。
Collins English-English Dictionary
- calcium
['kælsɪəm]
-
-
1.
n
a malleable silvery-white metallic element of the alkaline earth group; the fifth most abundant element in the earth's crust (3.6 per cent), occurring esp as forms of calcium carbonate. It is an essential constituent of bones and teeth and is used as a deoxidizer in steel. Symbol: Ca; atomic no: 20; atomic wt: 40.078; valency: 2; relative density: 1.55; melting pt: 842±2°C; boiling pt: 1494°C
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2.
n
[Etymology]
C19: from New Latin, from Latin calx lime
Examples
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The minerals, calcium, and sulfur were at the bottom of the ocean.
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矿物质、钙以及硫磺均存在于海洋底部。
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These scientists are experimenting with uncharged calcium atoms。
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这些科学家在用不带电的钙原子作实验。
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You could add a piece of cuttlefish bone，which is high in calcium，and would dissolve in the water.
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你不妨加一块墨鱼骨进去，它不仅含钙量高还可在水里溶解。
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Calcium-rich substrates dissolve into the water increasing the hardness.
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钙含量丰富的物质溶于水中，增加了水的硬度。
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Calcium phosphate was precipitated from this DNA solution in 30 minutes.
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钙磷酸盐在３０分钟之内就从这份ＤＮＡ溶液中被淀析了出来。
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The costs of reducing hardness depend on the relative amounts of calcium and magnesium compounds that are present.
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降低硬度的成本取决于钙及镁化合物的相对含量。
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