沉积物

1. 珍珠在几种软体动物的贝壳中，围绕着一粒沙子或其他外来物质形成的一种光滑、有色泽、具有不同颜色且主要是碳酸钙的沉积物，被珍视为宝石
   A smooth, lustrous, variously colored deposit, chiefly calcium carbonate, formed around a grain of sand or other foreign matter in the shells of certain mollusks and valued as a gem.
2. 成岩作用在岩石转化过程中沉积物发生化学和物理变化的过程
   The process of chemical and physical change in deposited sediment during its conversion to rock.
3. 减少矿物沉积物的减少，如在煤矿中
   A narrowing of a mineral deposit, as in a mine.
4. 沉渣沉到液体底部的东西；沉积物
   Something that settles to the bottom of a fluid; sediment.

沉积的英语翻译：

物的英语翻译：