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	emotionalists emotionalities emotionality emotionalize emotionalized emotionalizes emotionalizing emotionally emotionless emotionlessly emotionlessness emotionlessnesses emotions emotive emotive theory emotively emotivenesses emotivism emotivist emotivities emotivity emp empale empaled empalers

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