金链锁人比铁链更牢靠.Chains of gold are stronger than chains of iron.这条狗被皮链锁住了.The dog was shackled with leather chains.链锁反应: 物理和化学术语.反应生成的产物能进一步引发同类反应的自行延续过程.Chain reaction: Process yielding products that initiate further process...
Acetanilide and hexane diacid, potassium hydrogen phthalate could improve PVC crystallinity.乙酰苯胺 、 己二酸和邻苯二甲酸氢钾可以使PVC结晶度增大.Diacid has been got using diethylene glycol as decomposition agent of adduct.采用二甘醇作为加合物的分解剂,得到了二元酸...