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字词 矿井
释义
kuàngjǐng
kuàngjǐng
矿井kuàngjǐng
mine (shaft); pit
矿井安全mine safety
矿井shaft/pit pump
矿井定向仪shaft orientational instrument
矿井开采年限mine service life
矿井火灾mine shaft fire; mine fire
矿井headstock
矿井pithead
矿井通风系统mine ventilation system
矿井支柱mine timbering
矿井abandoned mine
kuàngjǐng
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更新时间:2025/7/8 20:06:20