The feasibility of discontinuous operation to pipelization continuous operation in ammoniation in medical industry was discussed.讨论了药业生产中将氨化反应由间歇操作改为管道化连续操作的可行性....
Choosing a soft compound here you have to be careful about graining.在这里选择软轮胎你必须注意粒化.After a bit graining over a few laps the performance came back.几圈之后轮胎有点粒化,性能表现下降了.These numbers members of the l legume family provide p...
There was an impassable barrier between the white race and the one which they had reduced to slavery.在白色人种和被他们奴役的种族之间有一道不可逾越的障碍。The avenue had never been paved, and deep mud made it impassable in winter.这条大街从未铺过路面，冬天泥泞不堪...