plug valve的用法和樣例：
例句
- 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.
然后，當旋塞閥升離閥座時(shí)，任何累積在閥塞或閥座上的吹入物質(zhì)都將被吹回到管路內。 - Electrical pulses pass through the injector winding, and set up a magnetic field that draws the plunger and valve away from the nozzle seat.
脈沖很快，電脈沖通過(guò)注油器纏繞，并建立了一個(gè)磁場(chǎng)，吸引著(zhù)柱塞閥原理噴油嘴座。
