barium

◎ barium是什么意思 n. 钡[化] 钡Ba n. a soft silvery metallic element of the alkali earth group; found in barite barium的用法和例句： 1. So we need to do a barium swallow test. 所以我们需要做一个吞钡检查 2. We need more barium chloride and ammonium sulphi...