• 1. orifice flow meter: 孔板流量计 | 孔口流量计 | 锐孔流量计
• 2. the orifice flow-meter: 标准节流孔板流量计
• 3. orifice-plate flow meter: 空板式流量计

• 1.The paper introduces calculating method of energy consumpation caused by flowmeters, such as orifice flow meter, vortex flow meter, and illustrates magnitude of energy consumpation with examples.
  介绍了孔板、涡街流量计测量不同流体时引起的能耗量的计算方法，举例说明了能耗量的大小。
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