redundanc y
英
美
- Y n.英语字母表的第25个字母(亦作y);〈化〉钇(yttrium)abbr.(=yard;year)院子;年
名词 redundancy:
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repetition of messages to reduce the probability of errors in transmission
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the attribute of being superfluous and unneeded
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(electronics) a system design that duplicates components to provide alternatives in case one component fails
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repetition of an act needlessly