孔板流量计 Orifice Plate Flowmeter ; orifice flow meter ; SITRANS
孔板流量计系数 orifice meter coefficient ; orifice flowmeter factor
内装孔板流量计 integral orifice meter
伸缩式气体孔板流量计 bellows-type gas or orifice meter ; type gas or orifice meter
孔板流量计量 orifice flow-measurement
宽量程孔板流量计 wide range orifice meter
一体化孔板流量计 HYLG ; ZHYK ; TLLG
记录式孔板流量计 chart-recording orifice meter ; recording orifice meter
多管孔板流量计 multi-tube orifice meter
通过实验研究，观察分析了流量测量管路中空间弯头下游有(或无)整流器时对孔板流量计流量系数的影响。
The flow coefficients of the orifice-plate flowmeters are experimentally studied with or without a rectifier at the lower reach of a space elbow in the measuring pipe of flow.
实验结果表明槽式孔板测量误差小于5%，研究结果对槽式孔板流量计的开发具有一定借鉴意义。
Experimental results indicated that maximum error of slotted orifice is less than 5%. The conclusion is available to the development of slotted orifice meter.
天然气计量现在仍以差压式流量计中的孔板流量计为主。
The metering of natural gas still presently depends on orifice flowmeter, one of differential pressure flowmeters.
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