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.
采用浆体循环与陈化沉淀的方法，使沉淀的铀浓缩物由无定形凝胶体或微晶转化成易沉降过滤的粗晶体。
Through precipitate circulation and aging, the yellowcake slurry in amorphous or microlite form was transformed to crystal precipitate.
另外，伴随酶解的进行，酶解作用使得纤维微晶体尺寸逐渐减小。这说明杨木SGW浆酶改性主要发生在纤维表面的半纤维素存在区域和纤维素的无定形区域。
This increase indicated that the complex cellulases readily attacked the more accessible amorphous region of cellulose and the location of hemicellulose on the surface of the fibers.
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