在顶冲点，水流逼近，冲击力大，无法迎托水流外移，防守困难。

In the jacking point, the water flow approximation, the impact force is big, can not meet the flow outside the flow, the defense is difficult.

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针对“泵吸”运移机制，对天然气沿断裂运移冲注模式及聚集规律进行了探讨。

Toward the migrating mechanism of "pump suction", it discusses the migrating model and the accumulating law of natural gas through fault.

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水沙两相流冲淤的双临界现象，对于多沙河流河道泥沙的输移有重要意义。

This double threshold phenomenon plays an important role in sediment transportation of heavily sediment laden rivers.

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Then I'm going to release these little pegs here and my piston is going to shoot up now p1 because p2 is less than p1.

现在移开插销,活塞就会往上冲,因为p2小于。

麻省理工公开课 - 热力学与动力学课程节选