Apply to protect electrical relay, POWER, amplifier and so on.
用于继电器、电源、放大器等电器元件保护。
Relay ", a relay is an electrical switch."
继电器是一个电的开关。
Less ash than that would knock out electrical power and relay stations.
而火山灰数量稍少的地区，电力站与通讯中继站可能会遭到破坏。
Less ash than that would knock out electrical power and relay stations.
而火山灰数量稍少的地区，电力站与通讯中继站可能会遭到破坏。
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