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A pressure differential relief valve is located in a zone between the check valves.
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压差安全阀位于止回阀之间的区内。 |
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A pressure draw-down equation is first established for partial penetration gas well in Darcy-flow dominated domain in bottom water reservoir, and then a binomial deliverability equation is obtained by combining with Non-Darcy binomial radial flow equation
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文章首先导出底水气藏打开不完善井在达西区域的压降公式，再结合非达西区域的二项式产能公式最终得到底水气藏向打开不完善井流动的二项式产能公式。 |
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A pressure relief valve must be installed as shown to prevent excess pressure by thermal expansion.
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必须按照图示安装压力安全阀，以防止由于热膨胀产生的过高的压力。 |
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A pressure transducer was set up in this system to realize pressure control in main lines and adjustment of pump operating time; the distributors were designed to accomplish grease storage in fixed quantity and transport them into all lubricating points;
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系统通过设置压力传感器实现主油路的压力控制和油泵工作时间的自动调节，通过配油器实现定量储油和将油脂输送至各润滑点，通过电子监控器设定加脂间隔时间，实现自动加脂与故障报警。 |
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A pretext for inaction; an excuse.
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搪塞怠工的借口；借口 |
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A pretrial conference is set for May 9 before a probate judge.
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在检验遗嘱前，5月9日将举行一个庭审前的会议。 |
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A pretty curtain hangs over the window.
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窗户上挂着一个漂亮的窗帘。 |
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A pretty girl with bad manners will be definitely considered inharmonious.
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一个漂亮的女孩没有礼貌肯定是不和谐的。 |
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A preview of the Impact Channel main page revealed photo links to profile pages of Joe Biden， Hillary Clinton， John Edwards， Rudy Giuliani， Duncan Hunter， Dennis Kucinich， John McCain ， Barack Obama， Ron Paul， and Mitt Romney.
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频道主页的预览版本披露了包括美国前总统克林顿夫人希拉里在内的10位美国总统竞选者的照片和介绍。 |
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A previous I/O operation finishes by signaling a hardware interrupt to which your driver is connected.
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通过给你所连结的设备发送一个硬件中断信号，（表明）之前的I/O操作完毕。 |
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A previously unknown aria by German composer Johann Sebastian Bach has been discovered in the eastern town of Weimar, a researcher said on Wednesday.
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近日，一部原本不为人所知的由德国作曲家约翰·塞巴斯蒂安·巴赫创作的咏叹调最近在德国东部城市魏玛被发现。 |
