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- annular pressure drop 环空压降
- Watch pressure drop on pressure gauge. 手表压力在压力标准度量上降低。
- Valve exhibits high pressure drop. 阀门出现高压降。
- DID THE PRESSURE DROP TO 0 PSI AND A "NO DRIVE" CONDITION OCCUR? 压力是否降至0PSI而且条件"NO DRIVE"出现?
- However, the pressure drop occurs almost completely in the plug. 然而，压力降几乎完全发生在多孔塞中。
- It can measure drilling engineering parameter,such as drilling pressure,torque,side pressure and annular pressure etc. 钻压、扭矩、侧向力、环空压力等钻井工程参数可以随钻进行测试。
- Drier operates in either flow direction with low pressure drop. 在任何一方向都可操作应用。
- Presents the theoretical model of pressure drop for flexible duct. 摘要介绍了柔性风管压力损失的理论模型。
- Downhole annular pressure is a key parameter.Conventional pressure loss calculation method is not applicable to a slin - hole. 井底环空压力是小井眼钻井的关键参数，通常的压力降计算方法对小井眼不适用。
- They are commonly used where a minimum pressure drop is important. 通常用在要求压降最小的应用场合。
- The paper introduces a new type slim - hole MWD tool, which is capable of accurately measuring downhole annular pressure and pressure effect caused by swabbing and waveness. 文章介绍一种新型小井眼随钻测井仪，它能够精确测量井底环空压力以及抽吸和波动引起的压力效应。
- Read the pressure drop across the valve with a Watts Series PG meter. 利用美国瓦茨系列PG仪器读出通过阀门的压降。
- For compressible fluids, where pressure drop exceeds half the inlet pressure. 对于可压缩性流体,如果压降超过进口压力的一半。
- For non-compressible fluids, where pressure drop causes cavitation or flashing. 对于不可压缩性流体,如果压降产生空穴或闪蒸。
- This paper presents a theoretical model for realistic annular pressure loss calculation in which the eccentricity is a function of the well depth and a simplified method for field calculations. 本文介绍偏心度为井深函数的实际环空中压降计算的理论模型和便于现场使用的简化计算方法。
- Adjust balancing valve until pressure differential gauge reads pressure drop required for desired flow rate gpm. 调整平衡阀直到压差表读出压降符合所要求的流量（加仑/分钟）为止。
- The inventory of solids in a fluidized bed can easily be found by pressure drop measurements across the bed. 流化床内的固定藏量可以用测定床层的压降办法很容易地求得。
- Requirement: Supply pressure drop must be 1.0 PSID or more when water flow stops from test cock No. 2. 要求：当水流从测试旋塞2号上停止时，供应压降必须在1.;0PSID及以上。
- In this range, the pressure drop increases in proportion to the specific gravity of the mixture. 在这个范围内压力差的增加与深水的比重成比例。
- When viscous forces predominate the flow is proportional to the pressure drop across the element. 当粘滞力起主导作用时，流量当通过主要部分的压力降或正好。
