The mining procedures which have an influence on the stress field in the strata and the fracturing of the roof are the rate of daily face advance, the mining rhythm, and the nature of working.

对于覆岩应力场和覆岩破裂有影响的采矿因素是工作面推进速度、采矿周期性和顶板管理方法。

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The NBC interview was recorded in advance. After Cheney spoke on ABC, Biden got a live rebuttal on CBS's Face the Nation.

VOA: standard.2010.02.14

Even an elite commando unit turned tail and fled rather than face a rebel advance.

ECONOMIST: Angola

The two sides to emerge from that process then advance to face the winners from the first-to-fourth play-offs in the final series of fixtures to determine the overall champion.

BBC: Welsh Premiership top-eight play-off sides decided

The Saints, who lost to Finland's MyPa-47 at the first hurdle last year, will face Austrians FC Salzburg if they advance from the two-leg first round.

BBC: Uefa Champions League logo