mtbf specified 中文意思是什麼
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The count of failure includes that of failure classification and failure pattern ; reliability indicator includes mean time to first failure ( mttff ) and mean time between failure ( mtbf ) ; life indicator includes feature life, center life, and specified life
其中，故障統計包括故障類別的統計和故障模式的統計；可靠性指標包括平均首次故障里程mttff和平均故障間隔里程mtbf ；壽命指標包括特徵壽命、中位壽命、額定壽命等。
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