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平硐开采
meaning in English
adit cut mining
aditcut mining
drift mining
tunnel mining
Related Words
硐
斜硐
平硐
川硐
躲避硐
坑硐
纸硐
硐室
探硐
硅硐
平硐
平硐工作面
平硐开采矿山
平硐开拓
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