高模低收缩型、高强低收缩型涤纶丝沸水收缩率和干热收缩率均低于高强型涤纶丝；

The boiling water shrinkage and dry-heat shrinkage rate of HT are also the greatest among the three types of industrial PET filaments.

材料置于模具中进行干燥可以消除水平方向的收缩，但高度方向的收缩率大于无模具干燥下的收缩率。

Drying the materials in a restricting mold diminished the horizontal shrinkage, and the vertical shrinkage was higher than that in the mold-less drying.

并通过实例, 对柿子干制时的体积收缩率和表面积收缩率进行了计算.

Introducing the example, volume and shrinkage rate of persimmon were calculated.

收缩率小，冲击强度高，光泽度好。

Low shrinkage, high impact strength, good gloss.

此外还介绍了成型收缩率的评价方法.

A evaluative method of forming shrinkage was introduced.

他们对预聚体收缩率的变化要求比较高。

They are relatively demanding upon the shrinkage change of performed polymer.

主要对影响生产低收缩纤维的工艺进行了探讨，实验结果表明：提高牵伸温度、定型温度、定型时间等工艺可以降低沸水收缩率而制得低收缩FDY。

The experimental results showed that increasing drawing temperature and set temperature and prolonged set time can reduce the boiling water shrinkage and gain FDY of low- shrinkage fiber.

绝缘热收缩率低于普通电缆的绝缘热收缩率。

The shrinking rate of the insulation is less than that of the common cable.

结果表明，干燥强度越大则物料的体积收缩率越大，且多孔物料的微观结构也对收缩特性有着重要的影响。

The results show that a fast drying rate will result in great volume shrinkage, and that the microstructure of the porous materials significantly affects the shrinkage characteristics.

摘要探讨了影响涤纶短纤维收缩率的工艺条件.

The technology conditions that have effect on polyester shrinkage rate were discussed.