synchronoscope
音標[siŋkrə'nɔskəup] 讀音漢語翻譯
【電】 同步指示儀
英文解釋：
名詞 synchronoscope:
- 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)同義詞：synchroscope, synchronizer, synchroniser