Polymers are usually semi-crystalline materials in which crystalline and amorphous domains coexist.
聚合物材料多为半晶态，晶畴和非晶畴共存。
Crystallinity. Polymers can be crystalline or amorphous, but they usually have a combination of crystalline and amorphous structures (semi-crystalline).
结晶度：聚合物可以是晶体状的或非结晶质的，但它们通常是晶体状和非结晶质结构的结合物(半晶体)。
On basis of a layered CTRW model the transient photoconductivity in amorphous semi-conductor superlattices is calculated.
本文以层状的CTRW 模型为基础，对非晶半导体超晶格中的瞬态光电导作了理论计算。
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