Platnum
(=Platnam)普拉特南耐蚀阀座合金, 普拉特纳姆镍铜合金
🗣️ 情景例句
Yes, we did.
确实如此。
Which of your arms is sore?
你哪个手臂酸呀？
I bought some this morning. It's in the fridge.
我今天早晨买了一些。在冰箱里。