含氯氟烃类的毒性效应
Toxic effect of Chlorofluorocarbons
其他醇类的毒性效应
Toxic effect of other alcohols
士的年及其盐类的毒性效应
Toxic effect of strychnine and its salts
酸和苛性碱类的毒性效应
Toxic effect of phenol and phenol homologues
氧化氮类的毒性效应
Toxic effect of nitrogen oxides
电极成形的几种方法
Electrode- shaping methods
我国的几种剧毒鹅膏菌
Deadly Poisonous Amanitae in China
安老院的种类
types of residential care homes
初类﹝种﹞的碰撞
collision of the first kind
次类﹝种﹞的碰撞
collision of the second kind