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1)  the orifice flow-meter
标准节流孔板流量计
1.
In this paper,the principle for the orifice flow-meter to measure the hydraulic turbine wicket gate leakage was introduced.
本文介绍了用标准节流孔板流量计进行水轮机导叶漏水量测量的基本原理,结合实例介绍了计算方法并进行了误差分析。
2)  standard orifice flow meter
标准孔板流量计
1.
The utilization of CFD numerical simulation in standard orifice flow meter provides a new method on the estimation and optimization of discharge coefficient.
通过在标准孔板流量计中引入CFD数值模拟,为流出系数的获取提供了新途径。
2.
The study on the characteristics of standard orifice flow meter in an air-lift pump was carried out by measuring the flow rate of water, a solution simulating high-level-liquid-waste and 30% trialkylphosphine oxide (TRPO)-kerosene solution.
 探讨了气提泵输送水,模拟料液,30%三烷基氧膦-煤油溶液时标准孔板流量计两端压降特征。
3)  standard metering orifice
标准流量计锐孔
4)  orifice flowmeter
孔板流量计
1.
How to increase measuring accuracy of orifice flowmeter;
天然气孔板流量计计量误差分析及改进措施
2.
Design and application of differential pressure orifice flowmeter in H_2O_2/kerosene engine test;
过氧化氢/煤油发动机试验中压差式孔板流量计的设计
3.
Comprehensively analyzed are the main factors that affect the measuring accuracy of the orifice flowmeter.
目前,孔板流量计仍是最主要的天然气流量计。
5)  Orifice flow meter
孔板流量计
1.
Orifice flow meters still occupy the leading position in gas measurement now.
目前孔板流量计仍然在天然气计量中占主导地位。
6)  orifice-plate flowmeter
孔板流量计
1.
The Application and Comparison of Gas Supersonic Flow Meter and Orifice-Plate Flowmeter;
气体超声流量计与孔板流量计在天然气工业中应用的比较
补充资料:孔板流量计
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性质:是节流式流量计的一种。主要部件为一块厚度不大的圆板,一般在中心开一圆孔,称孔板。装在管道正中。流体流过时由于节流作用在孔板前后产生一个压差;流量愈大,压差也愈大。根据压差计测得的数值可计算流量。孔板是节流装置中结构最简单的一种,安装方便,因而在工厂中使用较为广泛,其缺点是流体通过孔板时能量损失较大。孔板的型式还有偏心孔板、圆缺孔板、双重孔板等。

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