Bealloy
铍铜合金的母合金, 铜铍中间合金
🗣️ 情景例句
Stewart. S-t-e-w-a-r-t. Thank you.
Stewart， S t e w a r t。谢谢你。
Would you mind if I opened the window?
我开窗，可以吗？
The winch was again put into operation and one of the men started up the truck.
绞盘机再次启动，一位工人发动了急修车的引擎。