在纤维素的结晶区和排列高度有序的区域内，纤维素分子结合得比较紧密，树脂不能进入。
In the regions of the cellulose that are highly ordered and crystalline, the cellulose molecules are bound firmly together and cannot be penetrated by the resins.
在纤维素的结晶区和排列高度有序的区域内，纤维素分子结合得比较紧密，树脂不能进入。
In the regions of the cellulose that are highly ordered and crystalline, the cellulose molecules are bound firmly together and cannot be penetrated by the resins.
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