The result shows that the numerical simulation has truly reflected the basic law of gas flow and can predict gas flow quantity from boreholes in coal seam.
研究结果表明，数值模拟准确反映了煤层瓦斯流动基本规律，能够定量预测煤层钻孔瓦斯流量。
The utility model is suitable for measuring the flow quantity of gas and liquid.
适合于测量气体和液体的流量。
The air-passage device can adjust the flow quantity and input any required gas randomly.
※气路装置可任意调节流量，能任意输入各种所需气体。
The utility model provides a novel device used for measuring the flow quantity of liquid.
本实用新型提供了一种测量流体流量的新型装置。
The working principle of the orifice-plate measuring method of flow quantity was introduced.
介绍了孔板测量流量方法的工作原理。
A new measuring method for the flow quantity of production Wells is proposed, and the measuring principle is given in detail.
提出一种新的生产井流量测试方法。对测试原理进行了详细论述。
After analyzing factors of seepage flow quantity, the ordinary statistical model is established by selecting factors reasonably.
通过对渗流量影响因子的分析研究，合理选择因子，建立了大坝渗流量的常规统计模型。
One of the key points to ensure the normal operation of "once-through solar water heating system" is the outlet flow quantity control.
直流式太阳能热水系统的出口流量控制是保证系统正常运行的关键之一。
The utility model relates to a flow meter of novel, particularly for the measuring occasion of the lockage flow quantity of open canal.
本实用新型涉及到一种新型流量计，特别是用于明渠过闸流量的计量场合。
In the past time, the method of adjusting gate plate or throttle was usually used to control flow quantity. The method is simple but causes much loss of power.
过去多是采用调节档板或节流阀的方法控制流量，这种方法虽然简单，但损失了大量的电能。
Conclusion the information of umbilical artery blood flow quantity gained by color Doppler ultrasound may play an important role in evaluating the function of placenta.
结论由彩色多普勒超声获得的脐动脉血流量信息，在评价胎盘功能中起着重要作用。
The model, flow quantity and efficiency are discussed in diverting water to improve the water environment of Guangzhou City. Finally, some opinions and advices are presented.
对广州城区河涌引水净污的必要性、引水模式、流量、净污效益等进行了探讨，对河涌引水净污的实施提出了几点建议。
The testing method was introduced with the result of the experiment for the partial resistant coefficient of the control valve under fixed temperature and varied flow quantity.
介绍了定温变流量温控阀局部阻力系数的测定方法和试验研究结果。
Based on the implementation of the DRWWOS Project in Fuzhou, the issues of flow quantity are analysed. And the method to determine the flow quantity is presented in this paper.
通过对福州市近年来实施的引水冲污工程中有关引水流量的问题进行了分析，并提出了确定引水流量的方法。
The measurement of flow quantity and velocity is the primary task of hydrological measurement, whereas it is much hard to design a meter with high precision and convenient usage.
河流流量和流速测量是水利测量的基础工作，然而设计测量精确而又使用方便的仪器比较困难。
In this part, calculation methods of the productivity, air-cushion pressure, air flow quantity, nozzle area, capacity of ventilator and electric motor are given out systematically.
系统给出了气垫带式输送机生产率、气垫压力、空气流量、气孔面积、鼓风机和电机功率的计算方法。
The train of thought for instrument design selection in ammonia synthesis, alcohol hydrocarbonization system was discussed from aspects of temperature, pressure, liquid level, flow quantity etc.
从温度、压力、液位、流量等方面论述了氨合成、醇烃化系统仪表设计选型的思路；
Flow quantity control is usually needed in the cases such as tailing pump of beneficiation plant, some fans & water pumps of sinter or pellet plant.
选矿厂的尾矿砂泵，烧结厂和球团厂的一些风机、水泵类负载设备，常常需要进行流量控制。
Flow quantity control is usually needed in the cases such as tailing pump of beneficiation plant, some fans & water pumps of sinter or pellet plant.
选矿厂的尾矿砂泵，烧结厂和球团厂的一些风机、水泵类负载设备，常常需要进行流量控制。
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