分析了放顶煤开采顶煤冒放性的影响因素。
Analyses factors that affect cover caving ability of roof coal in sublevel caving mining method.
基于轨迹的可铺放性要求分析了铺放过程中预浸料产生畸变的原因及影响轨迹可铺放性的因素。
For requirement of placement ability of trajectory, the reason of prepreg distortion is analyzed and the influence of it is also discussed.
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