The loess slope was analyzed with reliability method, an optimized model for designing high loess slope was established, and the high loess slope of Tong-Hong highway was used to verify this model.
对黄土高边坡进行可靠性分析，应用数学原理和优化原理，建立了黄土高边坡的优化模型，对铜黄一级公路黄土高边坡进行分析验证。
The new technology are introduced in designing and manufacturing the mechanical structure of NC machine. These are useful and practical for improving the quality and reliability of the NC machine.
介绍了设计和制造数控机床机械结构的新技术，这对于提高国产数控机床的质量和可靠性具有指导意义。
This paper discussed the designing method of damage tolerance, gave calculation formulas of reliability in crackle, and finally, for an example, optimal design of the pressure vessel has been set up.
论述了损伤容限设计的方法，给出了压力容器含裂纹的可靠度计算公式，并举例确定了某压力容器的最佳设计。
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