2010年3月28日，矿工们在开挖一条新矿道时，不慎将一条注满水的旧矿道凿穿，喷涌而出的水随即将153名矿工困在了地下。
On March 28, 2010, miners digging a new tunnel accidentally cracked an old one filled with water. The ensuing2 flood trapped 153 workers underground.
3月28日，这些矿工在挖掘新矿道时不小心将一条充满水的旧矿道掘穿，汹涌而至的洪水一下子将这153名工人困在地下。
On March 28, miners digging a new tunnel accidentally cracked an old one filled with water.
根据模糊等价关系，以15个矿43条回采巷道为样本，给出了不同置信度下的分类结果。
According to fuzzy equivalence relationship, taking 43 gateways in 15 mines as samples, classification result is given at the different confidence levels.
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