The rough rice mainly fissured after drying. The moisture gradient caused uneven shrinkage is the main reason of rice fissuring after rapid drying.
干燥应力裂纹主要出现在干燥结束后的存放期间，快速干燥后谷粒内部形成的水分梯度是水稻产生应力裂纹的主要原因。
参考来源 - 水稻内部传热传质有限单元分析和应力裂纹机理研究·2,447,543篇论文数据，部分数据来源于NoteExpress
N-COUNT A fissure is a deep crack in something, especially in rock or in the ground. (尤指岩石)裂缝
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