从苯乙腈制取苯基硝基甲烷就用这个方法.This is a generally known method for obtaining phenylnitromethane from benzyl cyanide.设计了一套回收制药废液中乙腈的新工艺.A novel process of acetonitrile recovery from pharmaceutical effluent was designed.有机氰化物, 如乙腈 、 ...
It is better to stretch the tight muscles first.最好先伸展一下僵硬的肌肉。I'm trying to move on and stretch myself with something different.我正想换工作，想尝试点不一样的事情来挑战一下自己。Stand straight and stretch the left hand to the right foot.站直身体...
Shepherds was pelting through the gloaming their sheep and goats.牧羊人在暮色中驱赶他们的羊群.Dawn comes and you see its path - the glistening leaf, the gloaming stem blackening garden vine.拂晓时分,你随处可见它的踪迹,在闪亮的叶子上,朦胧的茎干上, 盘曲黝黑的藤蔓上....
In truth, however , the treaty was a bluff on the part of the Asgard.但真相确实, 条约只是asgard虚张声势而已.Despite the disapproval of the Asgard , the Goa'uld became a great threat to the Milky Way.尽管asgard的反对, goa'uld成了很大的威...