useful life span 中文意思是什麼
useful life span
解釋
有效壽命-
Magnetoelectric sensor is a kind of non - contact sensor and has some useful characteristics, such as non - contact, high response frequency, low power waste, high reliability, long life - span and etc
磁電傳感器是一種非接觸式傳感器,它具有無觸點、無開關瞬態抖動、響應頻率高、低功耗、高可靠性和長壽命等特點。
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