We've also approached the safety of maximum acceptable concentration of CHCl 3 and CCl 4 in drinking water.
本文还探讨了饮用水中二种受试物质最高容许浓度的安全性问题。
2
The third sample CHCl 3 part of acid base method (mainly containing alkaloids) is better according to the antitussive, expectorant and antiasthmatic activities.