Assessment on stability of partial rock-block mass is essential during tunnel's design and construction.

隧道围岩局部块体稳定性分析是隧道设计和施工过程中必不可少的环节。

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A computation model for ideal filling block mass was presented to achieve the most favorable compressibility of the fillings.

给出了具有最佳压缩性能的理想充填块体的计算模型。

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In the most simple case that I can think of, I have here a block m which has a certain mass, m.

在最简单的示范中，我有一个大块，它的质量为。

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Some politicians, like Representative Ed Markey (D-Mass.), want to block LNG exports altogether, insisting U.S. gas would better serve America if it remains at home to keep prices low.

FORBES: Rich Kinder's Energy Kingdom

The idea of extended range WiFi has been around the block before, but amidst all the talk of mass WiMAX deployments comes a swank new idea to get vanilla WiFi out to more people without breaking any laws or relying on expensive hardware upgrades.

ENGADGET: Intel developing software hack for long-range WiFi

In a warm front, a mass of relatively warm air pushes against a block of cooler air and is forced to flow up over it.

BBC: Turbulence ahead: Flight heads into storm's heart