该措施不仅保证了综采工作面支架安全、快速回收,而且还大幅度降低了撤面的费用。
This measure can not only ensure the safe and rapid withdrawal of powered support from the face, but also largely reduce the removal cost of the face.
该措施不仅保证了综采工作面支架安全、快速回收,而且还大幅度降低了撤面的费用。
This measure can not only ensure the safe and rapid withdrawal of powered support from the face, but also largely reduce the removal cost of the face.
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