同轴传动同轴传动装置 coaxial drive

方位同步传动装置 azimuth synchro drive gear ; Azimuth transmitting selsyn device

自同步传动装置 selsyn train

机电同步传动装置 electromechanical position repeating apparatus

天体方位同步传动装置 azimuth synchro-drive gear

同步传动装置 Synchronized driving device ; synchronous transmission device

俯仰同步传动装置 Elevation transmitting selsyn device