Discharges deep well air and debris by being in an open position on pump start-up.
Discharges deep well air and debris by being in an open position on pump start-up.
当泵启动时，阀门处于开启状态，排放深井气体和碎片。
Discharges deep well air and debris by being in an open position on pump start-up.
当泵启动时，阀门处于开启状态，排放深井气体和碎片。