Pcvd
[化] 等离子化学气相沉积
🗣️ 情景例句
Yes.
对。
I can't remember what John was doing yesterday afternoon.
我不能记得约翰昨天下午正在做的东西。
This is a rare occurrence as our climate seldom guest to extremes.
但是在我们这里，气候很少发生异常，河水极少泛滥。