• 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!

    每一年,威肯勃格商会都会赞助举办庆祝大会,旨在表彰该镇的矿业及牧业传统,而参加者都有机会参与挖金及淘金工作!

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

    凿岩峒室的稳定性是VCR采矿法安全的重要保障。

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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".

    本文叙述了中国人使用矿产品的先后次序,采矿坑峒、采矿方法及充填工艺的起源,和矿藏一词的由来。

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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.

    建造防水闸门硐室,进行水平、区上下组煤隔离,是预防水患普遍采用的方法。

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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.

    随着矿井开采深度的增加,深部软岩硐室群稳定性控制已成为困扰国内外工程界的难题。

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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.

    随着矿井开采深度的增加,深部软岩硐室群稳定性控制已成为困扰国内外工程界的难题。

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