The blasting efficacy of break rocks by water coupling charging and explosive coupling charging is discussed in the paper. A few conclusions of significance are gotten.
从理论上对水介质偶合装药爆破与炸药偶合装药的破岩效能进行了讨论，得出一些有意义的结论。
The reason of coupling bolt break is analyzed in this paper. Provide the experience for the design and installing coupling bolts of hydraulic turbine.
本文对螺栓断裂的原因进行了分析，为今后联轴螺栓的设计、安装提供了经验。
A hydraulic model of coupling 1-d river dike-breaking and 2-d dike-break waves is established in the paper.
本文建立了一维河道溃堤与二维溃堤波耦合计算的水力模型。
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