synchronizer
  同步裝置,同時閃光裝置,同步閃光裝置
  synchronizer
  同步器
  synchronizer
  同步器
  synchronizer
       n : an instrument that indicates whether two periodic motions
           are synchronous (especially an instrument that enables a
           pilot to synchronize the propellers of a plane that has
           two or more engines) [syn: synchroscope, synchronoscope,
            synchroniser]