Hugo bore his illness with great courage and good humour.雨果以巨大的勇气和良好的精神状态面对疾病。Hugo waved as he passed Hilary in his car.雨果开汽车从希拉里旁边经过时摆了摆手.Having warbled his thanks and put the potions in his boots, Hugo departed.雨果用颤音唱出...
Hugo waved as he passed Hilary in his car.雨果开汽车从希拉里旁边经过时摆了摆手.Having warbled his thanks and put the potions in his boots, Hugo departed.雨果用颤音唱出了他的感谢,把药放进他的靴子里, 便扬长而去.Hugo bore his illness with great courage and good humou...
The mechanism, development, testing and field test of EP DRA are introduced.介绍了EP系列减阻剂的作用机理 、 研制方法 、 中试生产和现场实验的概况.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.INTECH...