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矿井开采

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矿井开采

矿井开采

矿井开采

Mining

--河南理工大学应急管理学院-- ... 矿井开采 Mining 安全心理学 Safety Psychology ...

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After entering the soft coal mining , mining conditions have changed fully mechanized caving face in tandem with changes in the layout .

进入松软煤层开采之后，矿井开采条件发生了变化，综放面的布置也随着改变。

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Cerro de Pasco has been mined , mainly for silver , lead and zinc, since the 17th century .

从 17世纪开始，塞罗迪帕斯科镇一直在进行矿井开采，主要是银、铅和锌。

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However , with the extension of mining depth , the distribution of soft coal seam has been expanding.

然而，随着矿井开采范围的延深，松软煤层的分布范围呈不断扩展趋势。

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Mining in deep mine generally refers to the mining technology apoted for mining the specific depth coal that is apart from surface .

深矿井开采一般是指为开采距地表特定深度的煤炭而采取的开采技术。

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The transportation type is the key of utilization of the mine gas , so it's necessary to study the gas transportation technology.

矿井开采出的瓦斯气体如何进行输运是瓦斯利用的关键，因此，对煤矿瓦斯输运方式进行研究十分必要。

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Study of the key technology for increasing the mining toplimit of a mine

提高矿井开采上限的关键技术研究

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