The Tangxian diversion dam is double_curved arch dam. Its layout adopted the surface hole deflecting energy dissipation.

塘仙引水坝为双曲拱坝，溢流坝布置在河床中部采用表孔挑流消能。

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When the surface hole recombination velocity and defect density is bigger, the length of nanowire should not be too long.

当表面复合速率和体缺陷密度较大时，纳米柱的长度不宜过大。

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The results obtained from the experiments have demonstrated that his real-time inspection system of metal surface hole possesses the hig…

实验结果表明该金属箔材表面针孔实时检测系统具有较高的精度和较快的速度。

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One argument against the comet theory is that a comet would have left a large hole in the Earth's surface.

VOA: special.2009.01.20

It shot up through the hole and onto the surface, obviously ruining the hole, but at least not claiming any lives.

NPR: Businesses See Green in Iceland's Volcano Power

Curiosity drilled a hole in Mars to collect a sample of its surface, which is the first time any rover has drilled such a hole on the Red Planet.

FORBES: Curiosity Drills A Hole On Mars

Rather than a handful of men working in close confines about 90m underground, at a site like Tower there are some of the largest earth movers in the UK digging a hole 180m on the surface.

BBC: Does coal industry have a future in Wales?