snifter valve的用法和樣例：
例句
- The solenoid plunger pulls the vent valve down, blocking off the passage to the charcoal canister.
電磁柱塞拉下通氣閥，堵住通向活性碳罐的通路。 - A pilot-operated vent valve for pressure relief uses tank pressure, not weights or a spring, to keep the vent valve seat closed.
先導式通氣閥泄壓時(shí)利用儲罐壓力，而不是重力或彈簧外力，來(lái)保持通氣閥閥座關(guān)閉。
