英语词汇“backup device”的意思、用法、释义、翻译、读音、例句、短语、词组-英汉翻译词典

单词	backup device
释义	backup device freq. 57 cmpt. 28 spoken 1 un.备用安全装置 [网络]备份设备；备份装置；备用设备
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