The EP antiwear property is different that it contains different additives.不同的添加剂配伍,聚脲润滑脂的极压抗磨性也不一样.The antiwear & friction reducing mechanism of nano materials was summarized.综述了纳米材料的 抗磨 减摩机理.The antiwear hydraulic oil ...
He who risks nothing, gains nothing.不入虎穴，焉得虎子。No gains without pains.不劳无获。He has climbed down on pledges to reduce capital gains tax.他已经作出退让，许诺降低资本收益税。Clonal propagation can also give some large gains in a relatively sho...
鲁庄公,公元前六九三年至前六六二年鲁国的国君.Duke Chuang reigned over Lu from 693 to 662 B.C.威利: 这张票是所有的公车都有效还是只能坐六六街公车?Willie: Is it good on any cross - town bus or only on the 66 th street cross - town?...