锌基合金的压铸件总是在氰化镀液中镀铜.Zinc base die castings are always copper plated in cyanide baths.简要回顾了无氰碱性镀铜的发展历史.The development history of cyanide - free copper electroplating is briefly reviewed.指出了普通镀铜工艺的缺点.The disadvantages of c...
The piece was reduced in size by planing down the four corners.这块木头的4个角刨过后就变小了。This is a planing machine.这是一台刨床.The carpenter is planing away at a plank.木工在使劲刨一块木板....
Jest with an ass and he will flap you in the face with his tail.你跟驴子开玩笑，将被驴尾打耳光。Why did people get in a flap over nuclear energy?...为什么人们对核能惶恐不安呢？Fossa cubitalis place can flap repeatedly, appear even slight gore.肘窝处可反复拍...
The austerely lighted garage was quiet.灯光黯淡的车库静悄悄的.Five candles lighted up the bedroom.五支蜡烛照亮了卧室。In the lighted doorway stood the mountainous figure of a woman...一个身材高大的女人站在灯光明亮的门口。The ringing of the bell had caused the ...