其中物理方法是通过控制淀粉颗粒粒度，化学方法是通过化学反应，破坏颗粒结晶区域。
For destruction of the crystal structure, the physical means aim at controlling the granularity of the starch granules, while the chemical methods through chemical reactions.
研究表明，H3BO3与杉木粉中的羟基发生了缩合反应， 纤维素的结晶被破坏；
The results showed that hydroxyl groups of H3BO3 reacted with the hydroxyl groups of fir powder, and thus the crystalline phase of cellulose was destroyed.
对结晶体不允许破坏的物料。
Materials which the crystals are not allowed to be destroyed.
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