单词	backup relay
释义	backup relay noun : a secondary relay to protect a power system against faults in the event of failure of the primary relay to function as desired Word History First Known Use 1950, in the meaning defined above
随便看	mutualized mutualizes mutualizing mutualler mutuallest mutuallier mutualliest mutually mutually exclusive mutualness mutualnesses mutuals mutuary mutuate mutuation mutuatitious mutuel mutuels mutular mutulary mutule mutules mutuums muumuu muumuus

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