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。
The coal enterprise is a typical labor-intensive, high-risk trade with high accident rate.
劳动强度低，工效高。
本实用新型劳动效率高、劳动强度低。
The utility model has high labor efficiency and low labor intensity.
本发明劳动效率高、劳动强度低。
The invention has high labor efficiency and low labor intensity.
本发明劳动效率高、劳动强度低。
The invention has high labor efficiency and low labor intensity.
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