For educational equipment, the reliability is an indispensable criterion in the whole educational system and total life-span management.
在教育装备全系统、全寿命管理中，教育装备的可靠性是一个不可或缺的重要指标。
In some cases vibration and noise of PGT will have a great influence on reliability and life-span of the system.
在某些重要的应用场合，行星齿轮传动的振动和噪声是影响系统的可靠性、寿命与操作环境的关键因素。
How to define the best repair cycle and remanent life-span of the engine with the reliability theory is discussed and analyzed.
本文应用可靠性理论，详细论述和分析了怎样确定柴油机最佳维修周期和残余寿命。
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