范围法 meaning in English

area method
areamethod
rva

Measurement of fluid flow in closed conduits - velocity area methods - method using pitot static tubes
封闭管道内液体流量测量.第2部分:速度范围法.第1节:皮托静压管法
Measurement of fluid flow in closed conduits - velocity area methods - method of measurement of velocity at one point of a conduit of circular cross section
封闭管道内液体流量测量.第2部分:速度范围法.第2节:管道横截面某一点的流速测量方法
Measurement of fluid flow in closed conduits - velocity area methods - method of measurement of clean water flow using current meters in full conduits and under regular flow conditions
封闭管道内液体流量测量.第2部分:速度范围法.第4节:正常流动条件下利用全流动导管中的流量计测量清洁水流量的方法
Measurement of fluid flow in closed conduits - velocity area methods - methods of flow measurement in swirling or asymmetric flow conditions in circular ducts by means of current - meters or pitot static tubes
封闭管道内液体流量测量.第2部分:速度范围法.第3节:用流量计或皮托静压管在圆形管道中涡流或不平衡流动条件下测量流量