Lv11
80 积分 2025-02-26 加入
Floor heave mechanism and stiff control technology by I-beam for deep mine roadway
52分钟前
已完结
Mechanism and Application of Roof Cutting Pressure Relief Filling Gob-Side Entry Retention in Deep Hard Roof Working Face
1小时前
已完结
Innovative Control Technique for the Floor Heave in Goaf-Side Entry Retaining Based on Pressure Relief by Roof Cutting
2小时前
已完结
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