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单词
backup relay
释义
backup relay
backup relay
[
′bak‚əp ′rē·lā
]
(electricity)
A relay designed to protect a power system in case a primary relay fails to operate as desired.
随便看
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英语词典包含2567994条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。
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更新时间：2026/8/31 9:28:34