倒流防止器  backflow preventer; flow-back prevent unite; backflow preventers

高能耗管道倒流防止器  backflow preventer with high-energy consumption

过度操纵防止器  Bungee

过热防止器  desuperheater

回火防止器  back fire arrester; flash-back arrestor

火花防止器  spark arrestor

减压式倒流防止器  reduced-pressure principle backflow prevention assembly

降档防止器  downshift inhibitor

降档防止器口  downshift inhibitor port

降档防止器组件  downshift inhibitor group

《防止船舶污染国际公约》  International Convention for the Prevention of Pollution from Ships 1973

《防止洗黑钱修订指引》  revised guidance notes regarding money laundering

《国际防止海上油污公约》《国际防止海上油污染公约》  International Convention for the Prevention of Pollution of the Sea by Oil

《国际防止海上油污染公约》  International Convention for the Prevention of Pollution of the Sea by Oil

《国际防止油污证书》  international oil pollution prevention certificate

3国际防止生活污水污染证书  International Sewage Pollution Prevention Certificate 1973 197

M防止陆源海洋污染巴黎委员会  PARCO

帮助防止蛀牙  aids in the prevention of cavities

保值增值防止流失  Preserve and increase value and prevent losses