... pressure armor 耐压钢铠 pressure attenuation 压力衰减 pressure balance work over rig 不压井修井机 ...
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An exploration of axle centre pressure attenuation rule proves that the effective injection distance is 9~15 times as much as the diameter of nozzle entry.
对轴心压力衰减规律的探索，证明其有效喷距为喷嘴入口直径的9～15倍；
The threshold pressure gradient of low permeability sandstone was studied experimentally by measuring the pressure attenuation in an unsteady seepage flow.
为了研究低渗透砂岩的启动压力梯度，设计了一种非稳态渗流中测量压力的试验方法。
Through typical engineering examples the extrusion of soil between piles or over top of pile and the pressure attenuation of anchoring cables in the stabilization of landslide are studied herein.
本文对土体滑坡和松散层滑坡治理过程中容易出现的冒顶剪出、桩间土挤出和锚索预应力衰减等三方面的问题，结合典型的工程实例进行分析探讨。
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