When 2.6-level mine quake happens in the predicted areas, there is no disaster, which proves that the mine quake caused by the crack of the roof of the thick layer may be predicted.
在预计的位置发生2.6级矿震时，没有造成灾害，证明了厚硬顶板断裂引起的矿震是可以预测的。
In the roof structure of the roof for the rigid waterproof easy to crack and leakage of the situation, to take the following measures to reduce the cracks.
屋面的屋面构造中针对刚性屋顶防水易裂缝而发生渗漏的情况，采取了下列措施来削减裂缝。
The tank top to tank shell of dome roof tank is a thin-connection structure and is easy to crack during vapor purging.
由于拱顶油罐的罐顶与罐壁设计为弱连接，在蒸汽吹扫作业中，易发生罐顶爆裂事故。
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