Reed Relays干簧继电器
THERMAL RELAYS继电器
Protection relays保护继电器;继电保护;四．保护;继电器
Signal Relays信号型继电器
Auto Relays汽车继电器
optical relays继光镜组
Elementary relays基础继电器
Protective relays are necessary part for power system’s safe operating.
继电保护是电力系统安全运行必不可少的技术措施和重要手段。
参考来源 - 供配电线路自适应保护系统的算法与通信研究At present, domestic coalmine pump motor most using traditional manual control, that is, the artificial add the relays control methods.
目前国内井下水泵电机多数采用传统的人工进行控制,即人工加继电器进行控制的方法。
参考来源 - 基于ARM的煤矿井下水泵电机网络监控系统的研究N-COUNT（可数名词） A relay or a relay race is a race between two or more teams, for example teams of runners or swimmers. Each member of the team runs or swims one section of the race. 接力赛
Britain's prospects of beating the United States in the relay looked poor.
英国队在接力赛中战胜美国队的希望看上去不大。
V-T（及物动词） To relay television or radio signals means to send them or broadcast them. 转播
The satellite will be used mainly to relay television programmes.
这颗卫星将主要用来转播电视节目。
V-T（及物动词） If you relay something that has been said to you, you repeat it to another person. 转告 [正式]
She relayed the message, then frowned.
她转告了那个消息，然后皱了皱眉。