inverse-time definite time limit relay 定时限继电器 ; 反时定时限继电器

definite time limit distance relay 定时限远距离继电器

inverse-time definite-time limit relay 定时限

definite-time limit relay 逆时定时限继电器

inverse definite time limit 反比定时限

definite time limit relay 固定时限继电器 ; 定时限电驿

definite time limit 定时限

inversetime definite time limit relay 反时

inverse definite time limit characteristic 逆时定时限特性