The efficacy of alkaline glutaraldehyde in inactivating poliovirus was higher than that of acidic glutaraldehyde.碱性戊二醛对脊髓灰质炎病毒的灭活效果比酸性戊二醛强.Alkaline protease has been immobilized on chitosan with glutaraldehyde as crossli...
Candidates who answered "b" could be awarded half marks for demonstrating some understanding of the process.回答b的选手表明对这个过程有所了解，因此可以得到一半的分数。He was forced to entrust an assistant with the important task of testing and demon...
The man is an honest tradesman. He never gives short measure nor overcharges his customers.这人买卖公道, 从不亏秤,也不多要钱.This is a job for a skilled tradesman.这是娴熟的工匠才能干的活儿.The tradesman has rendered his account.这商人已经开出他的帐目.Jerry, ...