When we pass him again, the man who was digging is fully underground, the ditch now as deep as he is tall.

我们再次走到老汉身边时，他已经挖到地面以下了。现在应该很深了，因为他个子挺高的。

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It has provided a new way to prevent dust pollution problem at some fixed dust sources such as in main pass, underground crushing chamber and on surface.

该项研究为防止矿山井下主溜井、破碎硐室等以及地表产尘量较大的固定尘源污染问题提供了新途径。

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Air leak and dust pollution in ore drawing through long pass in underground mine threaten the underground prodution safety.

地下开采矿山高溜井卸矿过程中的漏风及粉尘污染威胁矿山井下的安全生产。

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In "None Shall Pass, " underground rapper Aesop Rock comes off as a hip-hop fortuneteller, announcing what will happen in a distinctly combative way.

NPR: Giving the 22nd Century a Soundtrack

The channels will not feed into the Yellow River, but will pass under the river in specially built underground channels.

NPR: River Has Long Reflected China's Glories, Sorrows

The phone can also store loyalty programs, present offers, work as a boarding pass and eventually pay at electronic turnstyles, like the London underground, or as announced today, New Jersey Transit trains and buses.

FORBES: Peering Through Technology Mists to See Customer Needs