短語(yǔ)詞組短語(yǔ)closing time for valve 關(guān)閥時(shí)間valve -closing time 氣門(mén)關(guān)閉時(shí)間valve fast closing time 閥門(mén)快關(guān)時(shí)間closing time of inlet valve 進(jìn)口閥關(guān)閉時(shí)間 返回 closing valve time