Assessment on mine air quality by using pollution loss rate is conducted.

使用污染损失率法对矿山井下空气质量进行了评价。

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As a new-style control technology of mine air flow, mining air curtain has widely application prospect.

矿用空气幕作为一种新型的矿井风流调控技术，具有广泛的应用前景。

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The method of system transformation, combining sealing are consequently used, and the problem of small mine air leak is solved.

采取系统改造，结合堵漏的方法，解决了小井漏风问题。

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The support troops perform a variety of functions such as mine clearance, equipment servicing, construction,air support, medical services and many others.

VOA: standard.2009.10.13

So let's think about it. This sucker, Mac AIR what's it got in there? That Air Mac, it's, see, it's got, its go-- my Air Mac, I don't know about John's, his is probably better, mine has 1.8 gigahertz speed.

再让我们来看看这台机器，它是什么配置呢？这台，是的，我的Mac，AIR，我不关心John的,他的可能还更好，我的CPU是1。8G的。

麻省理工公开课 - 计算机科学及编程导论课程节选

The Ministry of Defence said the 2m-long (6.5ft) device was raised from the seabed by a four-man Royal Navy team using a specially designed mine-lifting air-bag.

BBC: Huge explosion as experts detonate large WWII mine

It is pitching a new ventilation system that would fill a mine with sensors, dampers and louvers along with variable speed fans that will send only the right amount of air to the mine tunnels.

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That would effectively end surprise visits by mine safety inspectors, EPA air quality officials and anyone working for the IRS, said Crandell.

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