The tax increases will, in the aggregate, cause much hardship.增加税收归结起来造成很多困难.But in the aggregate they could launch a fair air strike.但是,如果倾其全部的力量,他们正是可以发动一次相当强劲的空袭的.Both sides still stand to gain from trade in the aggre...
In this paper the mechanism, conditions and alcoholysis reaction about halogenatedsilane were emphatically discusser.本文着重讨论了卤代硅烷醇解反应的机理 、 条件与应用.The method of preparing antioxidant DLTP directly by alcoholysis and the opt...