离心机不通过调速箱直接与电机驱动装置相连.Centrifugal machines are connected to the motor drive directly instead of through a gearbox.把硝化棉和水的浆液转移到离心机中.The nitrocellulose and water slurry was transferred to a centrifuge.可能是一种环境模拟装置,如离心机或机电式振动...
children frolicking on the beach在海滩上嬉戏的儿童Little Bao was happy as a puppy frolicking in the snow.小小宝快活得好像雪天的小狗.When they meet their tamed brothers, they rub noses and mingle with them, grazing and frolicking.它们对许多牧马都熟悉, 相...
这是及格和不及格的差别.It'sthe difference between a pass and a fail.我二年级时数学不及格。I flunked math in second grade.要是下次作业你再马马虎虎, 我话说在头里,可要给你打不及格了.If you do such sloppy work again, I promise I'll fail you....