The coal enterprise is a typical labor-intensive, high-risk trade with high accident rate.

煤矿企业是典型的劳动强度高、从业危险性高、事故发生率高的“三高”行业。

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The coal enterprise is a typical labor-intensive, high-risk trade with high accident rate.

煤矿企业是典型的劳动强度高、从业危险性高、事故发生率高的“三高”行业。

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