短语词组短语definite -time limit relay 逆时定时限继电器;定时限继电器;翻译inverse -time definite time limit relay 反时定时限继电器;定时限继电器definite time -limit release 定时限释放definite minimum time -limit relay 最小定时限继电器;时限继电器 返回 definite-time limit