pressure differential

The authority of motor operated control valve is usually calculated based on the pressure differential of terminal loop in air conditioning water system, which is renamed as selecting authority.

空调工程中电动调节阀的权度一般以末端环路压差为基准来计算，文中将该权度称为选型权度。

Note pressure differential and enter flow rate chart at pressure differential noted.

注意所标注的压差和对应压差的进口流量表.

Analyze the relationship between flow, pressure, pressure differential and valve opening of pressure reducing valves.

分析了减压阀的流量 、 力 、 力差和阀门开度的关系.

The authors have derived a model, which uses statistic average value of differential pressure square root and statistic variance of a throttling set in a two-phase flow system, to estimate the mass flowrate and steam quality.

作者曾从两相分离流模型出发，推导出了利用节流装置在两相流中差压方根的统计平均值和统计方差估计其质量流量及干度的理论模型。

STUDY ON STANDPIPE-TRICKLING VALVE SYSTEM ⅰ. Gas-Solid Flow in Cyclone Dipleg under Negative Pressure Differential Gradient

立管-翼阀系统的研究Ⅰ.负压差下旋风分离器料腿内的气固流动

Electro-vacuum Differential Pressure Valve ■ DYC-JQ electro-vacuum differential Pressure valve is valve for mechanical vacuum pump.

JQ型电磁真空压差阀是机械真空泵安全阀,安装于机械真空泵的进气口,并与泵同步开启和关闭.

Heat exchangers, other than the double concentric tube type or double tube sheet type, must employ a pressure differential and a means for monitoring the differential.

热交换器（除了双同心管换热器或双管板列管换热器）必须使用压力差，并有方法对压力差进行监控。

Compound discharge of the chink is the vectorial sum of shearing discharge and pressure differential discharge, but compound loss power is the algebraic sum.

复合泄漏流量是压剪泄漏和剪切泄漏两种流量的矢量和；而复合泄漏功率损失是压差泄漏和剪切泄漏两种功率损失的代数和。

Dry air tightness test methods mainly include direct pressuredrop method and internal pressure differential method.

干式气密性检测方法主要有直接压降法和内压压差法。

Increasing producing pressure differential and improving discharge rate are mainly used.

其中放大生产压差、提高油田排液量是强化开采过程的主要方法。

The pressure differential scanning calorimetry ( PDSC) was used to study the thermal-oxidation stability of Daqing150SN and its15 fractions obtained by chromatographic separation.

采用加压示差扫描量热计法（P DSC）对大庆150SN及其吸附色谱分离所得15个镏分与加入不同量的各种添加剂后的热氧化安定性进行了研究。

Transport the jet fuel by pressure differential method;

采用压差法输送航煤；

Oxidation Property Evaluation of Base Stock and Antioxidant by Pressure Differential Scanning Calorimetry

加压差式扫描量热仪评定基础油和抗氧剂的氧化性能

It is presented that the differential pressure orifice flowmeter and the angle joint differential pressure measuring structure used in the test are the applied technologies of H2O2/ kerosene engine test.

提出了压差式孔板流量测量和角接式取压结构在过氧化氢/煤油发动机试验中的应用技术。

Bellows differential flowmeter Bell gages may be used to measure gage pressure or differential pressure.

膜盒式引差动流量计浮钟式压力计可以用来测量计示压力或差压力。

If you don't do this, the pressure differential is too great and it will keep everything shut and you have to wait until your car is completely filled with water in order to get out.

如果不这样做，巨大的压差会将门窗都关死。到那时你只能等到车里完全充满了水才能逃出来。

This paper introduces the design principles and application of throttle orifice and pressure differential meter for boiler pipe work. So we can know the products property deeply and improve quality of the design job.

主要讲述了锅炉管路中节流孔板和流量孔板的设计原理及应用，以期在工作设计上更全面深入掌握产品原理，提高设计质量。

Evaluation of Thermal-oxidative Degradation of Aviation Lubricating Oil by Pressure Differential Scanning Calorimetry

航空润滑油热氧化衰变的高压差示扫描量热法分析

The characteristics of overflow valve Roots pump and ways of testing the overflow valve differential pressure are introduced. And it is pointed out that the overflow valve differential pressure of overflow valve Roots pump should be examined in test procedure.

介绍了带溢流阀罗茨泵的特点和溢流阀压差的试验方法，明确提出应对带溢流阀罗茨泵考核溢流阀压差。

Experiments for its verification were carried out on a high pressure pneumatic servo system made up of a three-port on-off valve and a differential cylinder.

在由三通气动高速开关阀和差动气缸组成的脉宽调制高压气动位置控制系统上进行了实验研究。

For a better simulation of the natural degradation of source rock Kero-gen under experimental conditions, pyrolysis experiments on two kinds of source rock samples from Xinjiang and Jilin were carried out by means of high pressure differential thermal analyser ( DTA).

在实验室条件下，利用压力差热分析仪（DTA）分别对新疆和吉林两种生油岩做了压力热解实验。

The actuator shall be designed to endure the unbalanced power resulting from the pressure differential caused by the shut-down of all the all-course bearing valves.

执行机构的设计应能满足在全行程承受阀全关时由于差压所产生的不平衡力。

The spatial stochastic distribution of phase concentration would cause a differential pressure noise when two phase flow is crossing a throttling set.

两相流流过节流装置时产生的差压测量噪音是由于相浓度在空间的随机分布所引起的。

A Study on the Pressure Differential Fertilizer Injection Unit in Sprinkler Irrigation System

压差式喷灌施肥装置的研究生化需氧量的差压式测定方法的研究

Making timely conversion of recovery process, augmenting producing pressure differential for stable production;

适时转换采油方式，增大生产压差，保持稳产；

Low-speed Stability Analysis of the Speed Control System with a Variable Delivery Pressure Differential Pump and a Speed Restrictor

压差式变量泵和节流阀调速系统的低速稳定性分析