矿井

giếng mỏ; hầm lò

mine (shaft); pit 废 矿井 abandoned mine 矿井 支柱 mine timbering 矿井 通风系统 mine ventilation system 矿井 口 pithead 矿井 架 headstock 矿井 火灾 mine shaft fire; mine fire 矿井 开采年限 mine service life 矿井 定向仪 shaft orientational instrument 矿井 泵 shaft/pit pump 矿井 安全 mine safety

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