求翻译：因为喷丸与强压形成的残余应力在弹簧的不同区域有较大的差异，将弹簧实体划分为更多的区域才能更加接近实际情况，这也需要使用更多种材料模型。是什么意思？

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Because the pill form with a strong pressure of residual stress in the spring of the different regions, the difference between a large spring entities will be divided into several zones to be closer to reality, it is also necessary to use more material model.

Because spurts the pill with the residual stress which restrains by force forms in the spring different region to have the big difference, divides the spring entity into more regions can a closer actual situation, this also needs to use the many kinds of material model.

Because of residual stress in shot and put down by force formed there are large differences in the different areas of the spring, spring entities into more areas to be closer to the actual situation, it also needs to use more types of material model.

正在翻译，请等待...