relayingn.继电保护;转播动词relay的现在分词.
relayvt.转播;转达;中继;接力;接替n.继电器;接力赛;替班
relay objective换向物镜
relay satellite无线电转播卫星
relay mechanics继电器力学
relay recording中继录音
relay technique接力技术
relay picked up吸起的继电器
relaying action中继作用
relayto message中继信息
relay television中继电视
relaying partner接力队员