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...
In such situations specific laboratory tests are necessary to establish the etiology.在此情况下,需要特异性实验来确定病原.Acute sinusitis is usually initiated by an acute respiratory tract infection of viral etiology.急性鼻窦炎常常是由病毒性病因的急性呼吸道感...
Hundreds of office buildings and homes developed large cracks in walls and ceilings.数百栋写字楼和住宅楼的墙壁和天花板上都出现了裂缝。...large fans hanging from ceilings...吊挂在天花板上的大风扇The walls and ceilings of contemporary auditoriums usually con...
...a naval task force with two thousand marines on board.由2,000名海军陆战队士兵组成的海军特遣队‘I’ll never smoke again!’ ‘Yeah?Go tell that to the marines.’ “我再也不抽烟了！”“是吗?骗鬼去吧。”Marines went in, taking 15 prisoners...海军陆战队士兵攻了进去，俘获 15 人。...
一对对摔跤手采取声东击西的佯攻手法,使对方猝不及防,终于揪住了对方,开始搏斗起来.With lightning feint, one after another pair finally seized hold and began to grapple.黛丝和山姆森正在讨论女摔跤手凯莉?威廉斯.Daisy is talking with Samson about Kelly Williams, the female wrestler.医...