玻璃，根据定义，是无定形、非晶态的；它的原子排布缺乏规律性，排列在各个方向上。
Glass, by definition, is amorphous; its atoms lack order and are arranged every which way.
非绣制的纺织材料制标签、徽章及类似品，成匹、成条或裁成一定形状或尺寸。
Labels, badges and similar articles of textile materials, in the piece, in strips or cut to shape or size, not embroidered.
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.
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