差动自动同步电机
differential selsyn motor
汽缸自动放水阀
automatic cylinder drain valve
汽缸自动放水塞
automatic cylinder drain cock
闭环同步回路
closed loop synchronous circuit
参数化同步自动更新
parametric and automatic synchronous updating process
差动式自动同步电动机
synchro differential motor
差动式自动同步发电机
synchro differential generator
大功率自动同步离合器
big power synchro-self-shifting clutch