文章摘要信息 关键词 : 导流能力;压裂裂缝;煤层气井;排采;闭合压力 [gap=1538]Keywords : conductivity;hydraulic factures;coalbed methane well;drainage;closure pressure
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fracture closure pressure 裂缝闭合压力
effective closure pressure 有效闭合压力
oral cavity closure-pressure 口腔闭合压
quick-opening closure pressure vessel 快开门式压力容器
tooth-locked quick closure pressure vessel 齿啮式压力容器
pressure closure 承压封头
top pressure closure 密封顶盖
closure of pressure system 压力系统封闭性
nozzle closure opening pressure 喷管堵盖打开压强
Under the flow for spool valve closure and relatively easy changes in fluid pressure and flow and less.
对于阀芯下流动,阀门相对地容易关闭而且流体压力和流量变化和少。
Swing-type check off er the least pressure drop and offer simple automatic closure; when fluid flow stops gravity and flow reversal closes valve.
旋启式止回阀压降最小,能够完全自动关闭,即在介质流动停止、重力和介质倒流的状态下自动关闭阀门。
Propellant property and nozzle closure opening pressure have an important effect on the ignition transient.
推进剂的燃烧特性及喷管堵盖打开压强对点火升压过程有较大影响。
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