使功能部件保持在或恢复到能完成其规定功能的状态的任何活动。
Any activity intended to retain a functional unit in, or to restore it to, a state in which it can perform its required function.
可靠性是指产品在规定条件下在规定时间内完成规定功能的能力。
Reliability defines the capability of a product to perform specified functions under definite conditions and within limited time period.
可靠性是产品在规定的条件下和规定的时间内完成规定功能的能力。
Reliability is the product's ability to perform its specified functions under the stated conditions for a given period of time.
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