A comparative analysis is made on the main technical requirement and test method specified in the new standard concerning motorcycle rear mirror.
对摩托车后视镜新标准中关于摩托车后视镜失真率的主要技术要求和测试方法进行了对比分析；
It makes comparative analysis about parts of GB150 welding connection classified standard and international standard. It also makes improvable Suggestions of pressure containers' testing criterion.
对GB150的部分焊接接头分类标准与国际标准进行了对比分析，提出了压力容器检验标准的改进建议。
Finally adopts the method of curve fitting to do the logarithmic spiral fitting, and then do a comparative analysis with the standard components after fitting the curve.
最后采用曲线拟合的方法进行对数螺旋线拟合，拟合出曲线后，与标准零件进行比较分析。
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