检电器 检电器的英文 英语翻译 detector; rheoscoperheoscope 拓展翻译 检电蛙rheoscopical frog计时继电器timing relay继电器relay继电器保护系统relay protecting system继电器插口relay jack继电器触点网络relay contact network继电器磁铁relay magnet继电器存储器relay storage继电器电键relay key继电器电路relay circuit继电器功能relay function继电器计数器relay counter继电器计算机relay computer继电器加法器relay adder继电器接收器relay receiver继电器矩阵relay matrix继电器开关relay switch继电器控制系统relay control system继电器联锁装置relay operated interlocking继电器逻辑relay logic