A.低壓沖洗 B.快沖洗 C.反洗
A.0.47µm B.0.45µm C.0.42µm D.0.46µm
A.密封環(huán) B.進口閥 C.逆止閥 D.流量調(diào)節(jié)閥
A.95% B.90% C.≤80% D.≤65%