化学式为 meaning in English

caso4・2h2o

Tanzanite is a blue variety of the gemstone zoisite . it consists of calcium aluminium silicate and is not particularly hard , having a value of 6 . 5 to 7 on the mohs scale
其实坦桑石则是宝石级蓝色的黝帘石，是一种含钙铝的硅酸盐，化学式为
A white crystalline substance , c27h45oh , found in animal tissues and various foods , that is normally synthesized by the liver and is important as a constituent of cell membranes and a precursor to steroid hormones
一种白色结晶物质，化学式为c27h45oh ，在动物组织和各类食物中都能发现，通常由肝脏合成，是细胞质膜重要组成以及类固醇荷尔蒙形成的前身。