For determining potency and residues by microbiological assay technique . Especially for Lincomycin , Clindamycin, Neomycin , ROXithromycin, etc.用于林可霉素,克林霉素 、 新霉素 、 罗红霉素等效价及残留的微生物学测定.The immunogenic potency of soluble an...
He didn't want company, talkative or otherwise.他不想跟人搭伴，不管这个伴儿是否健谈。He's not very talkative, is he?他的话不多，是吧？He is talkative when he has a few drinks under his belt.他几杯酒下肚话就多了....
...a billionth of a second.十亿分之一秒UNIT NINETEENA nanometer is one billionth of a meter ( 3~4 atoms wide 2 ).一纳米即十亿分之一米 ( 可以排列三四个原子 ).The centimeter - gram - second electromagnetic unit of inductance, equal to one billiont...