Total mainframe power switch could not be activated: check whether the Master relay is damaged, whether the flow relay tripped.
主机总电源开关不能启动：检查主令继电器是否损坏，过流继电器是否跳闸。
The Fairchild Model 15 relay, available in several bias range configurations to meet a variety of output requirements, offers excellent sensitivity and high flow capacity in a small volume.
飞兆半导体产品的15中继，在一些偏差范围内配置，能够满足生产要求的品种，提供了极好的灵敏度和在小体积高流量的能力。
Relay valves convert a sustained air flow from a three-way pilot valve into a momentary pulse or bleed, which shifts a control valve and then closes.
延迟阀可调节从三通控制阀到瞬间脉冲或放气阀的空气流量，放气阀或瞬间脉冲改变控制阀，然后关闭。
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