Roak spoil removal system of mine surface is to ensure mine roak spoil removal requirement, and to realize a key link of coal production continued development of mines.

矿井地面排矸系统是保证矿井矸石排放需求，实现矿井煤炭生产持续稳定地增长的关键环节。

youdao

JUST over ten hours into the rescue operation, 11 of the 33 miners trapped since August 5th in the San jose copper and gold mine in northern Chile had been winched safely back to the surface.

仅仅在援救计划10小时后，在8月5日被困于智利北部的San Jose黄铜黄金矿场下的33名矿工中的11名得以被绞车安全地带回了地面上。

youdao

It is likely to take almost another 24 hours before all the miners and the rescue workers, who descended into the mine to supervise the operation there, are back on the surface.

所有矿工和下到矿井中监察救援行动的救援人员全部返回地面，可能还需要24个小时。

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The firm said the construction phase would create hundreds of new jobs while the surface mine site could be tapped for geothermal energy to provide heating and cooling for the homes.

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More than 60% of all coal mined in the UK is produced by the Doncaster-based company at collieries or surface mine sites principally located in the west and east Midlands, Yorkshire and the North East.

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Enveloped in a smog of coal dust that softens the sunlight into a hazy glow is the An Tai Bao surface coal mine.

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