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平硐口
meaning in English
adit collar
adit entrance
adit mouth
adit portal
mine portal
Related Words
硐
斜硐
平硐
川硐
躲避硐
坑硐
纸硐
硐室
探硐
硅硐
平硐开拓
平硐勘探
平硐倾斜运煤道
平碹
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