“backup relay”的概念、定义、翻译、参考文献-科学参考

单词	backup relay
释义	backup relay [`bak´ǝp `rē·lā] ^ELECTRICITY A relay designed to protect a power system in case a primary relay fails to operate as desired.
随便看	periodic law periodic line periodic motion periodic peritonitis periodic perturbation periodic quantity periodic spring periodic table periodic wave period-luminosity relation period of vibration periodogram periodontal periodontitis periodontium periodontoclasia periodontosis period parallelogram perionychium periosteum periostitis periostracum periotic peripediment peripheral

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