redundancy

tran design altern

redundancy n.

冗餘

英英解釋:名詞redundancy:
1. repetition of messages to reduce the probability of errors in transmission
2. the attribute of being superfluous and unneeded
同義詞：redundance
3. (electronics) a system design that duplicates components to provide alternatives in case one component fails
4. repetition of an act needlessly