由于车轴已经凉了,弗兰克扔下了它.Frank abandoned his axle as the heat in it died.他得去修理大车, 给车轴涂油.He had to repair the wagon, grease the axles.他们焊接断了的车轴.They weld the pieces of a broken axle....
缔和聚合物较 非 缔合聚合物而言是一种比较好的酸液稠化剂.Association polymer than the non - associated polymer is a relatively good acid viscosifier.通过对稠化剂和抗磨添加剂的筛选,研究以水为分散介质的润滑脂.Lubricating greases with water as dispersing media are studied by scr...