Crane globe valves are highly efficient for services requiring frequent operation and throttling when pressure drop across the valve is about 20% of inlet pressure.
当通过阀门的压降为管路压力的20%左右时，美国克雷恩截止阀就能够高效应用在频繁操作和节流的应用场合。
Engine pressure ratio (EPR), the ratio of inlet pressure over exhaust-let pressure measurements. The ratio is used as the primary parameter to set thrust on some engines.
发动机压力比(epr)，进气压力与排气压力值的比，某些发动机以此作为设定推力的主要依据。
The pressure in rocket tanks and the pressure on the inlet of main pumps can be increased by using boost pumps, so as to ensure that the main pumps can work reliably without cavitation erosion.
使用辅助增压泵可降低贮箱压力，并提高发动机主泵的入口压力，以保证主泵在没有汽蚀的条件下可靠工作；
The pressure loss and the cleaning cycle. With the increase of the inlet concentration, the ash content of the same filtration area is rapid, and the pressure loss increases.
压力丢失和清灰周期。进口浓度增大，同一过滤面积上积灰速度快，压力丢失随之添加，结果是不得不添加清灰次数。
Hydrostatic pressure testing of the inlet valves (with open and closed disc) under a pressure of 1, 5 times the maximum static pressure plus water hammer for 30 minutes.
持续30分钟1.5倍的最大静压与水锤压力下，对入口阀(带打开和关闭盘)的静水压试验。
The inlet pressure of the jet pump can also be obtained by the pressure ratio, and it can be used for acquiring the productivity curve of an oil well.
这样，就可以计算出诊断喷射泵井工况所需要的压力比，流量比和泵效等工况参数，泵吸入口压力还可用来计算油井的产能曲线。
With the increase of inlet air temperature of the condenser, evaporation pressure, condensation pressure increase, but supercooling and superheat degree, refrigerating capacity and COP decrease.
随着冷凝器进口空气温度的升高，蒸发压力、冷凝压力升高，而过冷度、过热度、制冷量和COP均线性下降；
Through the contrastive test on the pressure characteristic of inlet structure, the relation that the inlet structural dimension and operation parameter affect the pressure drop has been established.
通过对入口压力特性的对比试验，建立了入口结构尺寸及运行参数对压力损失的影响关系，为水力旋流器入口结构及参数的合理设计提供了依。
Indication of inlet-outlet pressure difference between master cyclone inlet and outlet; local indication of pressure difference between high-efficiency filter inlet and outlet.
主旋风分离器进出口压差显示，高效过滤器进出口压差现场显示。
By applying black box theory inlet pressure, inlet subcooling, outlet pressure and valve opening are selected as influence factors to flow coefficient of electronic expansion valve (EEV).
根据黑箱理论提出将阀前压力、阀前过冷度、阀后压力和膨胀阀流通面积作为膨胀阀流量系数的影响参数。
The water filling and pressure maintaining system mainly included: pressure pump and its control device, blockage end at the spiral case inlet, sealing ring on the stay ring of turbine, etc.
蜗壳内充水保压系统，主要包括加压水泵及其控制装置、蜗壳进口闷头、座环密封环等组成。
The paper analyzed the influence of the orifice ratio on maximum discharge, the inlet pressure, outlet pressure, differential pressure, ect.
文章分析了孔板的开孔率对管路最大流量、孔板前压力、孔板后压力和孔板前后压差等的影响。
Reducing the inlet temperature of cooling water and increasing its mass flow are favorable to increase refrigerant performance coefficient, and can decrease optimal pressure at high pressure side.
降低冷却水进口温度和提高其质量流量不仅有利于提高制冷性能系数，而且能降低最佳高压侧压力。
Compensate for momentary surges in gas pressure with a restrictive orifice in inlet pressure channel on the models with pressure range of 1 to 26 in. wc (0.25 to 6.5 kPa).
为一时激增补偿与渠道，在入口压力与压力范围为1 ？二十六英寸厕所(0.25至6.5千帕)的模式限制口的气体压力。
A new principle is adopted in designing low pressure MOCVD equipment. The principle is that the pressure is set and controlled separately in outlet and inlet of gas line of mass flow controller.
采用了一种新的设计原理，即以流量计为基准，将气体入口端和出口端压力双重分别统一控制，进行了低压MOCVD设计。
The measurement of pressure was carried out by using semiconductor silicon piezometer. With the static pressure in inlet of pipeline and theoretic analysis we could get the total pressure of MPT.
压强的测量采用半导体硅压阻式压强传感器，通过测量MPT进气管路的静压，结合理论分析计算得到MPT谐振腔的总压。
The relief valve consists of a sealer and an adjusting spring. When the inlet pressure is greater than a set value, the spring pressure is overcome to discharge over-pressure air.
其安全阀是通过密封垫和调节弹簧构成的，当进口压力大于设定值时克服弹簧压力， 把过压气体泄放出去。
The relief valve consists of a sealer and an adjusting spring. When the inlet pressure is greater than a set value, the spring pressure is overcome to discharge over-pressure air.
其安全阀是通过密封垫和调节弹簧构成的，当进口压力大于设定值时克服弹簧压力， 把过压气体泄放出去。
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