并使用连续性方程，在考虑表面复合过程的情况下，提出了短二极管的少子寿命计算公式。
This paper calculates the expression between minority-carrier lifetime and switching time in short diode by analyzing the continuity equation when considering the surface recombination.
本文从滚动轴承寿命公式的基本前提出发，推导出了谐波齿轮传动中柔性轴承的寿命计算公式。
Going on the basic premise of the life formula for common bearings, the author deduces the life formula for the flexible bearings used in harmonic gear transmission.
指出了影响锅炉对流受热面剩余寿命计算公式的应用前提，分析了由于燃煤质量的下降，造成受热面磨损的原因。
The calculate formula premise of the residual life of boiler convection heating surface is pointed out, and the cause of heating surface wearing due to the quality decline of coal is analyzed.
美国应该根据寿命来调整退休年龄，整改高收入人群的收益计算公式。
America should index the retirement age to longevity and make the benefit formula for upper-income workers less generous.
本文首先分析了可靠性和寿命两个基本概念，并给出“节能寿命”的定义和相应的计算公式。
At first, this paper presents the fundamental concepts of reliability and life, gives the definition of "energy-saving life" as well as its calculating formula.
所得结果符合实际，证明了该模型及其计算公式对材料进行寿命预测是可行的。
The calculated data accord with the fact and indicate that life forecast by the model and its math formula are practical.
对于双向删失和更新计数过程的情形，我们分别获得了具体的计算公式，它们在寿命及可靠性研究中有重要的实用价值。
Both in the double censoring case and in the renewal counting processes some concrete results are derived, which have important and practical value for life and reliability research.
本文推导出了外插齿刀的体积计算公式，并以其体积最小和刀具寿命最大作为优化的目标函数，对其设计参数的优化设计进行了探讨。
The formula of calculating the volume of pinion cutter was derived. Taking the volume and life as objective function, the optimum design of designing parameters of pinion cutter was explored.
在疲劳断裂非平衡统计理论的基础上，推导出了在海洋腐蚀条件下微裂纹的平均寿命的计算公式。
A formula of fatigue life for materials in seawater is derived based on the non-equilibrium statistical theory of fatigue.
在疲劳断裂非平衡统计理论的基础上，推导出了在海洋腐蚀条件下微裂纹的平均寿命的计算公式。
A formula of fatigue life for materials in seawater is derived based on the non-equilibrium statistical theory of fatigue.
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