排はい気き弁べんはいきべんMeanings1nounexhaust valveTechnical term for a valve that releases exhaust gas, used in engines and machinery.エンジンの排はい気き弁べんが故こ障しょうすると、出しゅつ力りょくが低てい下かする。If the engine's exhaust valve fails, power output drops.
