...用原理 关键词] 寻优，正交试验法，代数法，泰勒级数，收敛速度 [gap=4419]Keywords ：researching-optimum, Cross-over method, Algebraic method, Tailor-series, Converging-velocity..
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Methods: Effect of 16 cases treated with SMI or potassium magnesium aspartate was observed by randomized cross-over method and compared.
方法：应用随机交叉对比的方法，对16例慢性充血性心力衰竭患者进行参麦注射液和门冬氨酸钾镁治疗比较。
Condusion: The current method of Rank sun test for comparing different phases in cross-over trial should be improved.
结论：现行的交叉试验的秩和检验无法比较阶段间的差别，应予以改进。
The Strength Reduction Finite Element Method is applied to test whether the sliding face cross over the pile with the short anti-side piles.
运用有限元强度折减法对设置抗滑短桩后，对滑面是否越过桩顶进行了验证。
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