airshafts

与airshafts相关的网络例句 [注：此内容来源于网络，仅供参考]

In subterranean civil engineering, ventilation shafts , also known as airshafts , are vertical passages used in mines and tunnels to move fresh air underground, and to remove stale air.

通风竖井是一个在地底下的公用工程，也称 airshafts ，这个垂直的通风口通常被用於隧道使用时或挖矿时可以排除废弃以换取新鲜空气。

It was an incredible block-----it was only approximately 180 by 120 metres but almost solid building, with minute airshafts separating buildings, sometimes not even air shafts.

人们在去年推平了九龙城，但它确实是个令人难以致信的地方－－大约120 180M，几乎完全被实体的房屋占据，仅有一些通风井散落在房屋之间，有时甚至连通风井都没有。所有建筑的表面积达到30万平米。