精调方位角自动同步传送机
fine azimuth-transmitting selsyn
精调仰角自动同步传送机
fine elevation-transmitting selsyn
仰角自动同步传送机
altitude transmitting selsyn
大功率自动同步离合器
big power synchro-self-shifting clutch
自动同步离合器
synchro-selfshifting clutch
Synchronous-Self-Shifting clutch
self-synchronizing clutch
差动自动同步电机
differential selsyn motor