Natm
新奥地利隧洞施工法
🗣️ 情景例句
Who's bringing the booze?
谁带的酒？
Delicious!
真好吃！
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。