• The coal mine production and the coal mine safety is closely related, complement each other.

    煤矿生产煤矿安全密切相关,相相成。

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  • This is the need for coal mine safety production and has great practical significance.

    煤矿安全生产需要极大的实际意义

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  • Provided guarantee to reduce mine accident incidence and ensure coal mine safety production.

    降低矿井事故发生率确保煤矿安全生产提供了保障

    youdao

  • Provided guarantee to reduce mine accident incidence and ensure coal mine safety production.

    降低矿井事故发生率确保煤矿安全生产提供了保障

    youdao

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