The soft joint can suit to the nonuniform settlement of foundation and decrease stress concentration at connection part.
软接头能较好适应地基不均匀沉陷，减小心墙和防渗墙结合部的应力集中。
Plastics shrinkage causes the deformation of injection molded parts. The pressure gradient, temperature gradient and shear stress in the cavity make nonuniform shrinkage.
注塑件变形始于塑料的收缩，型腔中压力梯度、温度梯度以及剪切应力的客观存在导致了注塑件各部位收缩的不均一。
Plastics shrinkage causes the deformation of injection molded parts. The pressure gradient, temperature gradient and shear stress in the cavity make nonuniform shrinkage.
注塑件变形始于塑料的收缩，型腔中压力梯度、温度梯度以及剪切应力的客观存在导致了注塑件各部位收缩的不均一。
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