In specific acid catalysis, the undissociated acids do not contribute.在特殊的酸催化中, 不离解的酸不起作用.The corresponding reaction of acetaldehyde is subject to general base catalysis.乙醛相应的反应服从广义的碱催化.Catalysis has increased the rate o...
Propyl glycidyl ether ( PGE ) was obtained from propyl alcohol and epichlorohydrin by phase - transfer catalysis.以环氧氯丙烷和正丙醇为原料,通过相转移催化法合成了正丙基缩水甘油醚.The FBC ( fluorous biphase catalysis ) is a new nonaqueous immobilization...
For the time being, however, immunotherapy is still in its experimental stages.但免疫疗法目前仍处于实验阶段。For the time being, the liberals seem to have carried the day.眼下似乎是自由主义者占据了上风。The situation is calm for the time being.局势暂时稳定。...
在保单有效期内，所缴纳的保险费是有保障的。Premiums are guaranteed throughout the term of the policy.本协议的有效期已过。The period of validity of the agreement has expired.这份保证书有效期为一年.This guarantee is valid for one year....
摆式加速计的原理.This is the theory of a pendulum accelerometer.假定加速计或速度传感器安装在离轴承座尽可能近的地方采集数据.Assuming Measurement by Accelerometer or Velocity Pickup securely mounted as Close as Possible to Bearing Housing....
老朽无能的学究最令人讨厌不过。Nothing is more tiresome than a superannuated pedagogue.不过,我是个老朽, 你是新的时髦的一代, 你不必听我这老一套. ”But I'm old - fashioned, you're the new modern generation, don't listen to me. "它本是一件老朽陈腐的东西, 很少有人愿意去...
The CCC 、 CQC 、 CE & CB Certifications for Motors were introduced.介绍了目前电动机的CCC、CQC、CE 以及 CB认证的基本情况.The whine of the motors jangled her nerves.马达的闹声使她的神经受不了.General Motors acquired a 50% stake in Saab for about $400m.通用汽车...