回动

• reverse movement
• retroact
• reverse motion
• return movement
• dropout
• reverse
• drop-out

参考释义

回动 [huí dòng]

• -
• 短语
  回动电压 {电工} dropout voltage
  回动阀 back valve; reverse; reversing valve
  回动机构 return gear; reversing mechanism
  回动连杆 reversing link