紫外辐照后，LLDPE的晶型和晶面间距未发生变化，但是其熔融温度和结晶度下降。
After the ultraviolet irradiation, the crystal shape and distance of the crystal plane of LLDPE remain unchanged. However, the melting temperature and crystallinity decrease.
分离出的蜡结晶为正交晶型的晶体，晶面距为0。
The results show that the wax crystals separated from crude oil are orthorhombic crystals whose interplanar spacing is 0.
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