The chain guide frame of coal cutting machine is produced with metabainited cast steel.

将准贝氏体铸钢应用于采煤机链轨架。

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Other mining applications for high pressure water technology are water assisted coal cutting, dust suppression and cooling.

高压水技术还可应用于煤炭行业中的煤炭切割，防锈以及冷却等应用。

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The method of coal cutting adopts deep-hole blasting and realizes no people in the face, this decreases risk when workers are working in the face.

煤柱回收采用深孔爆破的方法落煤，减少工人在工作面打眼的危险。

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Moving forward, we will continue to invest in new technologies that put Americans to work in the jobs of tomorrow -- from building advanced wind turbines and long-lasting batteries to developing cutting-edge clean coal technologies and next generation biofuels.

WHITEHOUSE: The White House

These cost-cutting measures include closing two coal plants.

FORBES

Two-thirds of the price was subsidized by the city, which estimates that it has replaced almost a hundred thousand coal stoves since the project began, five years ago, cutting down on sulfur and dust emissions.

NEWYORKER: Green Giant