A certain degree of free fibrillar structure was observed on the fiber surface due to the sheath structure of the fiber subjected to the greater drawing and orientation.
纺丝过程中纤维皮层结构受到更大的拉伸取向作用，并在纤维表面出现一定游离原纤化结构。
The fibers have obvious fibrillar structure and extremely high orientation with the highest orientational factor up to 0 99.
纤维拥有显著的原纤化结构，并具有极高的取向度，最高取向参数高达0 . 99。
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