The fifth is assigned to crack shaft (with the doline in the same seam).
五是地缝配竖井（
与地缝相通）。
,
The fifth is assigned to crack shaft (with the doline in the same seam).
五是地缝配竖井（与地缝相通）。
Fourth, Fifth, Fei Bao underground river next to crack doline distribution.
四是暗河接飞瀑 五是地缝配。
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