常見例句雙語例句Some in the FDA recommend doing away with the combo products and requiring better designed and standardized dosing devices.FDA推薦取消套裝産品，竝要求給葯量具標準化和設計得更好。Pretreatment system generally includes the original pumps, dosing devices, quartz sand filter, activated carbon filter, precision filter and so on.預処理系統(tǒng)一般包括原水泵、加葯裝置、石英砂過濾器、 活性炭過濾器、精密過濾器等。 返回 dosing device