单词	underfrequency relay
释义	underfrequency relay noun : a relay actuated by a fall in electrical frequency Word History Etymology under entry 3 + frequency
随便看	unreflectingly unreflective unreflectively unreformable unreformed unreformedness unrefracted unrefreshed unrefreshing unrefreshingly unrefrigerated unrefusable unrefutable unrefuted unregal unregarded unregardful unregeneracies unregeneracy unregenerate unregenerately unregimented unregister unregistered unregistering

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