If you have an evacuation system, what kind do you currently have so that we can make sure the fittings are acceptable (f/air, fume hood, active system)?是什么意思_If you have an evacuation system, what kind do you currently have so that we can make sure the fittings are acceptable (f/air, fume hood, active system)?在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句