pressure differential meter [仪] 压差式流量计

altitude pressure differential meter 高度压力差表

differential pressure level meter 差压液位计

differential pressure meter 差压计 ; 差压压力表 ; 压差计 ; 差动压力表

differential frequency meter [仪] 差示频率计 ; 差频表

pressure differential flow meter 差压流量计

differential head meter 差高计

handhold differential pressure meter 手持式微压差测量仪

bellow-type differential pressure meter 伸缩囊型差压