The degree of crystallinity is important because it affects toughness and mechanical strength.
结晶度很重要，因为它会影响产品的韧性和机械强度。
The undrawn MPPAN yarn has lower crystallinity and crystal size, fairly high mechanical strength...
MPPAN卷绕丝的结晶及晶粒尺寸较低，具有一定的机械强度，热水收缩较大。
The undrawn MPPAN yarn has lower crystallinity and crystal size, fairly high mechanical strength...
MPPAN卷绕丝的结晶及晶粒尺寸较低，具有一定的机械强度，热水收缩较大。
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