The paper has studied straightening stress and residual deformation of circular shaft by using elastic - plastic theory, deueloped calculation formula of straightening loud in given deflection error.

从弹塑性理论出发以圆截面轴为例对校正应力与残余变形进行了分析研究，提出了在给定弯曲误差下的校正载荷的计算公式。

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The changes on static stress, acquired according to the half-space elastic dislocation theory, can exist on fault plane for a long time until the next strong earthquake.

依据半弹性空间地震位错理论获得的静应力变化量，可以长期存在于邻近断层面上，直至下一次地震发生。

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The contact zone width of crane wheel with track is analyzed by plane stress elastic theory.

采用平面应力弹性理论，对吊车车轮与轨道的接触区尺寸进行理论分析。

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Even if our basic theory is that economy is elastic in response to nominal stress and plastic in response to real stress, a sudden change in rigidity combined with a large nominal shock could cause a very large plastic deformation in the economy.

FORBES: NGDP in the Long Run and Economic Plasticity