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...
The town's political climate was libertarian.该镇的自由主义政治气氛浓厚。To the libertarian and the hard - determinist, such a distinction is unintelligible.对意志自由论者和刚性决定论者来说, 这样的区别是难以理解的.The Frankfurt School has made an important...
第十二步:后腿的毛修理的时候,要向前梳.On the rear legs, brush the longer hair forward.在接下来的过程中,一步转移法和二步转移法都会被介绍.In the following process - step and two - step stock transfers are explained.二步溶剂结晶法纯化了脂肪酸甲酯磺酸钠盐表面活性剂.Sulfonated fatty acid me...
The nurse will tell you when to bear down.分娩时护士会告诉你何时使劲收缩腹肌.I cannot bear to see bear bear down upon a hare.我忍受不了(自己)看着一只熊对一只野兔施压.He tried his best to bear down all of his oppositions.他尽全力击败一切反对意见....