The situation of zero-failure data may occur in the reliability life test of an electronic product when it has a high quality or the test time and fund are limited.
在电子产品的可靠性寿命试验中，如果产品本身的质量很好，或者受试验时间和费用等条件的限制，则有可能出现“无失效数据”的情况。
Because of the high reliability of hull and less samples, the fixed time censoring method is used in the reliability test of hull commonly to get zero-failure data of hull.
由于船体的可靠性高且样本少，在船体的可靠性试验中常用定时截尾方法得到船体寿命的无失效数据。
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