回流防止器 meaning in English
back flow preventer
backflow preventer
Examples
- Devices to prevent pollution by backflow of potable water - controllable backflow preventer with reduced pressure zone - family b . type a
防饮用水回流污染设备.带减压区的可控制回流防止器. b系列a型 - Devices to prevent pollution by backflow of potable water - controllable backflow preventer with reduced pressure zone - family b - type a
防饮用水回流污染设备.带减压区的可控制回流防止器. b系列a型 - Devices to prevent pollution by backflow of potable water - controllable backflow preventer with reduced pressure zone - family b , type a ; german version en 12729 : 2002
饮用水防回流污染设备.带减压区的可控回流防止器. b系