丝锥 、 铰刀 、 钻头 、 锯片 、 铣切刀具 、 磨光工具以及其它等等, 所有这些方面的片镀都是很成功的.Taps, reamers, drills, saws, milling cutters, burnishing tools, and so on, have all been successfully plated.利用内镀方法制造金刚石铰刀是一种精密铰刀制造方法.Inside holding electroplating p...
Lasers promise to change this by making isotope separation easier, and cheaper.激光可以改变这种局面,从而使同位素分离变得比较容易 、 比较廉价一些.This indium isotope was created at the same time as the earth.这种铟同位素与地球产生在同一时代.The isotope ratio is direct...
A person retains a domicile until it is abandoned.个人保留住所直到其更换。I thought it better to change my domicile for the present.我想目前最好是迁居.Domicile is distinct from nationality.住所与国籍不同....
Margaret resides with her invalid mother in a London suburb.玛格丽特同她病弱的母亲住在伦敦郊区。At best Nella would be an invalid; at worst she would die.内拉往好里说会落下残疾，往坏处说可能会生命不保。A passport that is out of date is invalid.护照过期是无效的....