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Collins English-Chinese Dictionary
- calcium ['kælsɪəm]
-
-
1.
noun
[u]
钙
-
1.
noun
[u]
钙
Comprehensive English-Chinese Dictionary
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
-
2.
n
[Etymology]
C19: from New Latin, from Latin calx lime
-
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
Examples
- Milk is an important source of calcium.
- 牛奶是钙质的重要来源。 → calcium
- The minerals, calcium, and sulfur were at the bottom of the ocean.
- 矿物质、钙以及硫磺均存在于海洋底部。 → calcium
- to enrich dog biscuits with calcium → enrich
- 碳酸钙加热分解，生成氧化钙和二氧化碳。
- The thermal decomposition of calcium carbonate produces calcium oxide and carbon dioxide. → 生成
- 吃钙片不是补钙的唯一途径。
- Taking calcium tablets is not the only way to supply calcium. → 钙片
- 补钙不当同样会导致钙质流失。
- Inappropriate calcium supplements also lead to calcium excretion. → 钙质
- 老年人骨骼脆化, 大多是因为缺钙。
- Because of lack of calcium, old people's bones are very brittle. → 脆化
- 他的肺部有钙化点。
- His lung has calcium spots. → 钙化点
- 由于缺钙, 老年人容易患骨质疏松症。
- Due to a lack of calcium, old people can easily get osteoporosis. → 骨质
- 石灰岩的主要成分是碳酸钙。
- The main component of limestone is calcium carbonate. → 石灰岩
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