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.Conducting polyaniline ( PANI ) and poly - O - methylaniline ( POT ) were prepared by ...
to hold onto the handlebars抓住把手Unloosed my grip on the handlebars.把握紧的把手松开了.From time to time he shifted his position on the handlebars.他不断地变换着握把的姿势....
It is time to bury our past misunderstandings.是我们捐弃前嫌的时候了。Clear up misunderstandings between the two nations.消除两国之间的误会.Tell your midwife what you want so she can make a note of it and avoid misunderstandings.把你的要求告诉助产士，这...
在某些地方, 犯规的人只罚款了事.In some places, the penalty for noncompliants is a fine.在跆拳道里, 打对手的脸是犯规的!In Taekwondo, it's against the rules to punch your opponent's face!任何犯规的人都要立即离场.Anyone breaking the rules will is ask to...
We are already doing the groundwork for the introduction of the scheme next year.我们已经在为明年施行计划做些基本的准备工作。Yesterday's meeting was to lay the groundwork for the task ahead...昨天的会议是为以后的工作做准备。These courses provide the gro...
要确定事态演变的明确结果,并不容易.It is not easy to establish the exact sequence of events.他论证说,生物是由于一些小的遗传变异的积累而逐渐演变的.He argued that organisms evolve gradually by accumulating small hereditary changes.每项发展都是而且将来也是逐渐演变的.Each development...
He is very clever and endlessly resourceful.他聪明机敏、足智多谋.What is immediately striking is how resourceful the children are.最令人注目的是孩子们的机智聪明.She is now divorced and, in her usual resourceful way, has started her own business....