后收缩 残余收缩
Post-contraction residual contraction
以上为机器翻译结果，长、整句建议使用 人工翻译 。
结果表明，优化工艺后成型的复杂壳体制件的残余应力明显减小，体积收缩也比较均匀，缺陷明显减轻。
The result indicated that the residual stress in the product produced by optimized project was decreased obviously, the volumetric shrinkage was homogeneous and the defect became slight.
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