coal underground mining中文，coal underground mining的意思，coal underground mining翻译及用法

2026-06-20 20:49 浏览次数 21

coal underground mining

煤炭井下开采

coal underground mining 例句

英汉例句

  • as the use of coal underground mining face of electrical equipment and control equipment, must be flameproof or intrinsically safe type equipment.

    但是由于在煤矿井下采掘工作面使用的电气设备和控制设备，必须是隔爆型或本质安全型设备。

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