The fully stressed design criterion is approximate and the stress ratio algorithm must be used repeatedly.
满应力设计准则是近似的，同时必须循环运用应力比算法。
Based on its stress characteristics, the author introduces points for attention in design such as control of axial compression ratio and structural measure.
根据异形柱的受力特点，论述了在设计时应注意轴压比控制和构造措施等方面的要求。
The design philosophy and method for equal stress ratio of pumping rod are proposed and the corresponding software for optimization design of rod pumping parameters is compiled.
文中还提出了抽油杆等应力比的设计思路和方法，并编制了相应的机抽参数优化设计软件。
Based on the orthogonal test design, this paper studied the effect of low cycle stress, high-low cycle stress ratio , high cycle number and high cycle frequency on complex fatigue life.
在高低周复合疲劳研究中采用了正交试验设计的方法，并以此为基础综合研究了低周应力、高低周应力比、高周循环次数和高周循环频率对复合疲劳寿命的影响及其机理。
The calculating results showed the stress ratio and displacements of the above two type trusses were satisfied with design codes.
计算结果表明，两种桁架体系的应力水平和位移情况均满足设计要求。
The calculating results showed the stress ratio and displacements of the above two type trusses were satisfied with design codes.
计算结果表明，两种桁架体系的应力水平和位移情况均满足设计要求。
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