通过对无机、有机离子化合物,极性化合物的实际分离分析,讨论了 EIC 柱的制备条件对柱涂层厚度和使用寿命的影响.Based on obtainedpapers, we studied preparing conditions of ( EIC ) column.通过控制步进电机的运动, 来实现对柱塞泵流量的精确控制.Through controlling the step motor moving, the accurate contr...
Automotive - engine lubricating systems are of the pressure - feed type.汽车发动机的润滑系统采用压力供给式.In the present chapter, the emphasis is mainly on lubricating oils for internal combustion engines.本章着重讨论用于内燃机的润滑油.Complex calcium...
Richard refused to trade in his old Canon cameras.理查德拒绝用他的旧佳能相机以旧换新。Vendors were doing a brisk trade in souvenirs.商贩们的纪念品生意很红火。the trade-in value of a car一辆汽车的以旧换新抵价...
气缸中的蒸汽膨胀并推动活塞向外运动.Steam in a cylinder expands to push a piston outward.当排气冲程开始时, 气缸被向上运动着的活塞刮掠.When the exhaust stroke starts, the cylinder is swept out by the upmoving piston.在发动机气缸里发生的动作,可以分为四个过程或冲程.The actions taking ...
He is always having a little escapist fantasy.他总是抱有一丝逃避现实的幻想。The real escapist can watch a film and sip champagne on some services.真正会享受的人还可以在某些航班上看一场电影和喝香槟.Only an escapist can invent such an excuse.这种借口只有逃避现实的人能想的得出....
很快他们就成了地平线上的几个小点了。Soon they were only dots above the hard line of the horizon.告诉那孩子小点声.Tell that kid to stop making so much noise.这种鞋小点不要紧,穿穿就大了.It doesn't matter if the shoes feel a bit tight. They'll stretch ...