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。

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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。

youdao