“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	U index Uintatheriidae Uintatheriinae UJT Ulatisian ULCC ulcer ulcerative colitis ulcerative endocarditis ulcerative gingivitis ulexite ullage ullage rocket ullmannite Ullmann reaction Ulloa's ring Ullrich-Turner syndrome Ulmaceae ulmic acid ulmin ulna ulnar deviation Ulotrichaceae Ulotrichales Ulotrichineae

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