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。
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.
误差的一个来源是折射，即光束通过不同温度和压力的空气层时发生的弯曲现象。
One source of error is refraction, the bending of light beams as they pass through air layers of different temperature and pressure.
考虑系统误差和轮齿综合柔度，对齿轮弯曲强度的计算力点进行研究。
Considering the system errors of gear drive and teeth synthetic flexibility, the loading point of bending strength was studied.
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