main haulage roadway 中文意思是什麼
main haulage roadway
解釋
運輸大巷-
The design of automatic air door in trackless main haulage roadway
無軌運輸大巷的自動風門設計 -
Optimized design of support parameter of main haulage roadway in jinjia mine
金佳礦井運輸大巷支護參數的優化設計 -
Cut - through survey of west belt - haulage main roadway at no. 2 level of luling mine
蘆嶺煤礦二水平西部膠帶運輸大巷貫通測量 -
Reinforcement of bolt and grouting in main haulage roadway in linhuan coal mine
城郊煤礦煤巷錨桿支護參數及施工工藝
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