a calcium compound的意思|示意

A caustic acidic crystalline compound, NHCNH, prepared by treating calcium cyanamide with sulfuric acid.

一种腐蚀性的酸性晶体化合物，NHCNH，可通过硫酸作用于氢氨化钙制取。

Egg shell: Egg shell has little nutritional value. It is just a build up of a calcium compound.

蛋壳：蛋壳含有很少的营养价值，是由钙的化合物构成。

A binary compound consisting of carbon and a more electropositive element, especially calcium.

碳化物一种二元化合物，由碳和一个电正性的元素，尤指钙，组成。