- outer sphere
- 随动: follow-up; servo
- 球: sphere; globe
- 随动球环电极: ring electrode of the outer sphere
- 动球: puck handling
- 随动: follow-up; servo (drive)◇随动电动机 follow-up motor; 随动阀 servo valve; 随动机构 follower; servo mechanism; 随动机械手 master-slave manipulator; 随动轮 supporting roller; 随动摄影 panning; 随动装置 hunting gear; follow-up device; 随动自动机构 follow-on automatic mechanism; 随动作用 servo action
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