Preimpregnation
预浸
🗣️ 情景例句
Are you still doing your photography?
你还在搞摄影吗？
It's a beautiful country with several chains of mountains.
这个国家很美，它有很多山脉。
It was the idea of supporting a craft on a 'pad',or cushion, of low-pressure air, ringed with a curtain of higher pressure air.
用一个气垫来支撑船体，低压空或软垫，软垫周围用高压空气环绕。