大家都搜：
金属更换
1、replacement───n.更换；复位；代替者；补充兵员
2、replacement cost───重置成本，更换成本; 复置成本
3、diverter replacement───分流器更换
4、replacement order───更换订单；补单
5、metal───vt.以金属覆盖；n. (Metal)（捷、瑞典）梅塔尔（人名）；n.金属；合金；adj.金属制的
6、drachma replacement───德拉克马替代品
7、astragal replacement───星体替代
8、replacement rate───更新率；[遗]替换率
9、replacement part───代元部分，备件；备件；替换件
1、GE began selling Lexan in 1957. A potential replacement for glass and metal, it was used for everything from electric coffeemakers to the light covers on the wings of supersonic aircraft.───通用从1957年开始销售聚碳酸酯以逐步取代玻璃和金属，它的应用非常广泛，从电子咖啡机到超音速飞行器的表面材料。
2、Valve Advantages: The replacement of elastomeric packings by metal diaphragms gives this valve superior leak integrity at the top works of the valve and stem.───阀门的优点：用金属横膈膜代替人造橡胶衬垫在阀门和阀杆的顶部机件处给予了这种阀门出众的泄漏完整性。
3、Considering the critical components like reactor coolant lines and oil-well casings, the metal parts are subjected to prior replacement, for safety, with respect to a worst-case analysis of failure.───考虑到关键部件如反应堆冷却剂线和油井涂层不能出现问题，为了安全，并对失效做了最坏的分析，这类金属零件会得到优先更换。