relay pad继电器垫圈
relayvt.转播;转达;中继;接力;接替n.继电器;接力赛;替班
relay for line telecommunication有线电讯继电器
relay-type recording instrument继电式自记仪表
Relay and contactor testing stand接触器,继电器试验台
relay protection experiment system继电保护
relaying protection equipment check继电保护设备检测
Relay Communi-cations Electronics中继通信电子设备
relay assembly test room experiment接力装配试验
Relay and Protective Equipment Sale继电器及保护设备销售