片语
diaphragm-seal gauge隔膜压力表
diaphragm steam seal gland隔板汽封
diaphragm-seal flange connection膜片密封法兰连接
reservoir diaphragm cover seal水库
diaphragm-seal pipeline clamping膜片密封管道夹持
diaphragm-seal pressure gauge隔膜压力表
Diaphragm-seal manometer隔膜压力表
diaphragm m seal flowmeter膜片式密封流量计
diaphragm labyrinth seal隔板汽封