orifice meter 孔板量计 ; 细孔流速仪

orifice flow meter 孔板流量计 ; 孔口流量计 ; 锐孔流量计

integral orifice meter 内装孔板流量计

integrating orifice meter 积分式锐孔流量计

multiple orifice meter 多孔测量计

orifice meter coefficient 孔板流量计系数

wide range orifice meter 宽量程孔板流量计

multi-tube orifice meter 多管孔板流量计

bellows-type gas or orifice meter 伸缩式气体孔板流量计

chart-recording orifice meter 记录式孔板流量计