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...
I've had a bellyful of training.我已受够了训练.She loved singing as a child and started vocal training at 12.她从小就喜欢唱歌，12岁开始了声乐训练。Caroline revolted against her ballet training at sixteen.卡罗琳16岁时拒绝接受芭蕾舞训练。She has produced se...
A number of local people have been arrested for trying to obstruct lorries loaded with logs.一些当地人因试图阻止满载原木的卡车通行而被逮捕。The defences are intended to obstruct any advance by tanks and other vehicles.这些防御工事用于阻止坦克等车辆前进。Claire p...
强中自有强中手, 能人背后有能人.However strong you are, there's always someone stronger.大使们都说他是该国首屈一指的大能人.Ambassadors report him the ablest man in the country.你不能人小鬼大.You can't put an old head on young shoulders....
粒度一般是向上递减的.There is a general decrease in grain size upward.我们必须用具有相当数量的最小颗粒的粒度.We must use the smallest size of solid present in appreciable quantity.从具有不同骨料粒度的立方浇注块中切出方形板块.Square slabs were cut from cubes cast with var...