| 释义 |
碳酸钙 TànSuānGài ☆☆☆☆☆n.名词⁰·⁰⁰⁰⁶ᴾᵃ¹⁴⁸⁸⁴
基本例句
calcium carbonatelimestonechalk whitingchalk powderlime carbonatelime-rockchalk繁体碳酸鈣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, chieflycalcium carbonate, formed around a grain of sand or other foreign matter in the shells of certain mollusks and valued as a gem. |