单词 | 生石灰 |
释义 | 〔calcific〕Producing salts of lime, as in the formation of eggshells in birds and reptiles.产生石灰盐基的:产生石灰盐的,如鸟壳和爬行动物卵壳的形成〔calcium〕A silvery, moderately hard metallic element that constitutes approximately 3 percent of the earth's crust and is a basic component of most animals and plants. It occurs naturally in limestone, gypsum, and fluorite, and its compounds are used to make plaster, quicklime, Portland cement, and metallurgic and electronic materials. Atomic number 20; atomic weight 40.08; melting point 842 to 848°C; boiling point 1,487°C; specific gravity 1.55; valence 2. See table at element 钙:一种银色的、硬度适中的金属元素,约占地壳中各种元素的百分之三,是多数动物和植物的基本组成物之一。自然存在于石灰石、石膏、氟石以及其它化合物之中,用于制造石膏、生石灰、硅酸盐水泥以及冶金和电子材料。原子序数20;原子量40.08;熔点842到848度;沸点1,487度;比重1.55;化学价2 参见 element〔calcine〕from Late Latin calcīna [quicklime] 源自 后期拉丁语 calcīna [生石灰] 〔quicklime〕lime [lime] translation of Latin calx vīva calx [lime] vīva [live] * see lime 3lime [生石灰] 拉丁语 calx vīva的翻译 calx [石灰] vīva [天然的] * 参见 lime3〔asbestos〕from Greek [mineral or gem, unslaked lime] 源自 希腊语 [矿物或宝石,生石灰] |
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