Instead of silver nitrite mercuric nitrite may be used.可以用亚硝酸汞来代替亚硝酸银.Mercury fulminate may contain trace of mercuric oxalate.雷汞中可能含有微量的乙二酸汞.Aim To discuss the effect of mercuric sulfide in the cinnabaris.目的探讨硫化汞在朱砂中的作用....
我饶有兴致地阅读了杰曼·格里尔在三月那期发表的文章。I read Germaine Greer's article in the March issue with particular interest.日期由三月推迟到四月.The date had been put back from March to April.试行已阅三月.Three months have passed since we started to try...