plunger valve的用法和樣例：
例句
- Electrical pulses pass through the injector winding, and set up a magnetic field that draws the plunger and valve away from the nozzle seat.
脈衝很快，電脈衝通過注油器纏繞，並建立了一個磁場，吸引著柱塞閥原理噴油嘴座。 - Then as the plug valve is lifted off its seats, any accumulation below the plug or on the seats will be blown back into the line.
然後，當旋塞閥升離閥座時，任何累積在閥塞或閥座上的吹入物質都將被吹回到管路內。
