Chromas
[医] 铬酸盐
🗣️ 情景例句
I've never been more relaxed.
我从来没像这样轻松过。
I have a slight fever.
我轻微发烧。
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。