醚化及交联反应主要在淀粉的非结晶区进行，反应并未破坏淀粉颗粒。
Etherifying and cross-lining occurred mainly in the amorphous region of the starch granule, and they do not disrupt the starch granule.
结果表明，紫外光的照射主要导致聚甲醛试样表面层发生晶体破坏和无定形部分分子链降解，内层则主要发生非晶区重整结晶；
The results showed that UV radiation mainly led to crystal destruction and molecular degradation on the surface and recrystallization on the interior part of the sample.
介绍了BOPP薄膜的结晶行为和取向行为，分析了晶区和非晶区取向的不同特点。
The crystallization and orientation behaviors of BOPP film were discussed. The orientation features in crystalline and amorphous regions were compared.
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