... 韦格型救护器 Weg rescue apparatus 伪顶 false roof 伪倾斜采煤法 false dipping mining method ...
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false roof rock 伪顶岩石
false roof mining 伪托顶开采
artifical false roof 人工假顶
parting and false roof bottom 夹矸及伪顶底
false-hard roof 伪硬顶
false e roof rock 伪顶岩石
The roof slice longwall method increases the work of laying false roof for next slice.
长壁采煤法的采煤工艺具有多重特点：顶分层采煤增加了要为下分层填设假顶的工作。
The man-made false roof quality is very important to the mine pit safety in production.
人工假顶的质量对矿井的安全生产至关重要。
In slicing seams, bolt supporting was utilized under false roof and obtained good result.
介绍在分层开采煤层中，在假顶条件下实现锚杆支护。
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