偏差源 meaning in English

aberrant source
source of bias

The existing assembly tolerance analysis and synthesis are mainly applied to the rigid assembly , and not suited to the deformable sheet metal assembly . it is necessary to find a new method that applied to the deformable sheet metal assembly . there is great meaning that we use the new method to make clear the variances sources and to improve the quality of the sheet metal assembly
现有装配偏差的分析与综合研究主要沿用了刚体装配误差理论，不适合柔性金属薄壁件，因此，寻求适用于具有柔性特点的薄板装配偏差研究方法，探明引起装配偏差的各类偏差源，对控制轿车车身等薄板装配偏差具有重要意义。
This study is started according to the above background . the purpose is to find a best variance analysis method for the deformable sheet metal assemblies . we can gain useful information to improve the quality of assembly by analyzing the variance sources
本课题是在上述背景下开展的，目的是通过对薄板装配偏差的计算，寻求适合金属薄板装配的公差分析方法；通过对引起装配偏差的各类偏差源的分析，发现不同偏差源对综合偏差的不同影响，有利于提高金属薄板的装配质量。