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New relays of troops were sent to the battle front.新补充的部队已送往前线.The mechanical relays , which have been assumed in Fig . 4 - 9 , can be replaced by electronic switches.图 4-9 中使用的机械式继电器, 可以用电子开关来代替.A visual or audible sign...
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v.转述( relay的第三人称单数 )，转达...
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...a security system with satellite relays.带有卫星传输设备的保安系统In the end, the network reliabilities considering voltage sags and protective relays or not are compared.最后比较了计及电压暂降和保护性能前后的配电网可靠性指标变化.Materials and physical config...