Unfortunately, this air-tight seal is often hard to maintain, especially if passengers want to walk between cars.

但不幸的是，这种高气密的设备不容易保养维护，特别是当乘客们想要在车与车之间走动时显得更为困难。

Making the building air tight means doing things different from traditional techniques.

使建筑气密性是指从传统的技术做不同的事情.

Let cool completely and store in an air tight container.

待完全冷却,装入密封容器中.

The disillate needs to be kept in an air-tight container.

蒸馏后的精华需要保存在密封的容器内。

Wetshelled corn can be safely stored in air-tight storage units.

脱粒的湿玉米可以安全地贮存在密闭的贮藏设备里。

This brand of red wine of this brand all has air tight corks.

这个品牌的红酒都有一个严密的软木塞.

This brand of red wine of this brand all has air tight corks .

这个品牌的红酒都有一个严密的软木塞。

Wet-shelled corn can be safely stored in air-tight storage units .

脱粒的湿玉米可以安全地贮存在密闭的贮藏设备里。

For carrying goods liable to be spoiled by damp or water they have the advantage of being both water-tight and air-tight .

为了使运输的货物不被弄潮湿，它有防水盒防空气的的优点。

One way is to try to design a completely air-tight train, like an airplane cabin.

一种方法是试着设计一个完全密闭的火车，像飞机舱一样。