• Every year, the Wickenburg Chamber of Commerce sponsors a festival to celebrate the town's mining and ranching heritage, and participants get to shovel and pan for gold!

    每一肯勃格商会都会赞助举办庆祝大会,旨在表彰该镇矿业牧业传统参加者都有机会参与金及淘金工作!

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  • The stability of drilling chamber is an important facet to ensure the safe operation of VCR mining method.

    凿岩峒室稳定性VCR采矿安全重要保障

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  • The paper describes the sequence of mineral products used by the Chinese, mining pit and chamber, mining method and the source of the term "mineral resources".

    本文叙述中国人使用矿产品先后次序采矿峒、采矿方法充填工艺起源矿藏一的由来。

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  • A construction of the water dam chamber for isolation between horizontal and up and down seam in a mining district is one of the comment water prevention and control methods.

    建造防水闸门室,进行水平上下组煤隔离预防水患普遍采用方法。

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  • With the mining depth increased, the stability control of the deep soft rock chamber group became a difficult problem in the engineering industry at home and abroad.

    随着矿井开采深度增加深部硐室稳定性控制成为困扰国内外工程界难题

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  • With the mining depth increased, the stability control of the deep soft rock chamber group became a difficult problem in the engineering industry at home and abroad.

    随着矿井开采深度增加深部硐室稳定性控制成为困扰国内外工程界难题

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