When the plating exist defect, the gold - plating nickel - plating both promote the stress - corrosion fracture of Kovar alloy.在镀层存在缺陷时, 镀金、镀镍层均促进柯伐合金的应力腐蚀开裂....
现在去看足球比赛太晚了; 况且老天又开始下雨了.It's too late to go to the football match now; besides, it's beginning to rain.况且此刻快要九点半了, 还没见一些儿动静.Besides, it's nearly half past nine, and still nothing's happened.况且两个人的母亲已经...
The Grand Canal joins the Hai River at Tianjin.大运河在天津和海河汇合。Wait for me where this road joins the main road.在这条路和大路会合的地方等我。Catherine Zeta - Jones joins him as Amelia, a kind flight attendant.凯萨琳?丽塔琼斯则饰演一位名为爱蜜莉亚的亲切空服员.A tr...
It makes sense to eat a reasonably balanced diet when slimming.在减肥过程中保持饮食的营养相对均衡是明智的。He balanced his budgets by rigid control over public expenditure.他通过严格控制公共开支保持预算平衡。He cut down on coffee and cigarettes, and ate a bala...