孔板流量计

The most commonly used method for measurement of gas is the orifice meter.

孔板流量计是测量气体流量最常用的方法。

Orifice flowmeter is one kind of flow measuring instruments that widely used in chemical engineering industries.

孔板流量计是一种广泛应用于化学工业的流量测量仪表。

Long, clear lengths of upstream pipework must be provided, as for orifice plate flowmeters.

长期，明确的长度上游管道必须提供，如孔板流量计。

Rosemount Integral Orifice Flowmeters offer highly accurate small-bore flow measurement capability with minimal installation and maintenance requirements.

罗斯蒙特积分孔板流量计提供高精度小口径最小的安装和维修的规定，流量测量的能力。

Bench of closed circuit cooling tower that is composed of boiler, exchanger, orifice flowmeter, water pump, micromanometer, heat indicator and so on is established.

建立了由锅炉、换热器、孔板流量计、水泵、微压计、温度计等仪器设备组成的封闭式冷却塔实验台。

Airlift pump ; pressure drop ; standard orifice flow meter ; liquid flow rate

气提泵；压降；标准孔板流量计；液体流量

Mathematical model for discharge coefficient of orifice - plate flow - meter is presented and tested on the basis of literature data.

化工生产过程中，常常用到孔板流量计或文丘里管以测定管路中的流体流量。

Orifice flow meter s 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。

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。

Natural gas ; Gas pipeline ; Orifice meter ; Measurement error ; Calculation ; Analysis

天然气；输气管道；孔板流量计；测量误差；计算；分析

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。