短語詞組短語Plateau Exhalation Valve 使用平臺(tái)呼氣閥exhalation valve stem 呼氣活門柱;呼氣閥門柱pressure compensated exhalation valve 壓力補(bǔ)償呼氣閥門combination inhalation -exhalation valve 呼吸氣複郃活門 返回 exhalation valve