适当地降低高温下纤维的张力，为高分子链段的运动提供了活动空间，有利于高弹形变的松弛。

Reducing the tension upon the fiber under high temperature to provide enough movement space for polyester segments, which is beneficial to the relaxation of high elastic strain.

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我们曾在福建尝试让老虎恢复天性，但没有成功，因为福建缺乏一条完整的食物链，而且老虎的活动空间也有限。

We tried in Fujian Province, but it was not successful as there was not a complete eco-chain and there was a lack of space.

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