The diisobutyl dicarboxylate was prepared by using acid and isobutanol as material and acid as catalyst.以二羧酸和异丁醇为原料,用硫酸作催化剂,合成二羧酸二异丁酯.Butyl cinnamate was synthesized from cinnamic acid and butyl alcohol using tungstosili...
Acid rain is not straightforwardly attributable to the burning of coal.酸雨并非简单地由烧煤造成。Nor is acid rain always, and universally, a bad thing.酸雨也并非在任何情况下都是坏事。This comedy of contemporary manners is told with compassion and ac...
Too bad he used his intelligence for criminal purposes.他把聪明都用在了犯罪上，太可惜了。Northbridge is a cool, calculating and clever criminal who could strike again.诺思布里奇是个头脑冷静、诡计多端、阴险狡诈的罪犯，他可能还会犯案。They would be sacked for criminal or ...