中文摘要：

采用低场核磁共振技术（LF—NMR）对稻谷干燥过程中水分状态的变化情况进行了追踪研究。结果表明：稻谷中所含的结合水最多，占80％以上，自由水和不易流动水很少，分别为8．6％和4．7％；在干燥过程中，随着干燥时间延长稻谷中的水结合得越来越紧密；稻谷中不同状态的水分之间存在着一定的相互转换与渗透；水泥地晾晒与篾席晾晒对稻谷中不同状态的水分分布影响不大。

英文摘要：

The low field nuclear magnetic resonance （ LF - NMR） technology was used to track the moisture states＇ variation about the rice during it＇s drying in this paper. Results showed that the water of hydration content in the rice accounts for absolute advantage, more than 80% ; free water and immobilized water accounts for 8.6% and 4.7%, respectively. In the process of drying, water in the rice is getting more and more closely with the extension of drying time. There is mutual transformation and penetration between water＇s different states in rice. No obvious differ- ences between drying on the cement court and bamboo mat on the moisture States＇ variation about rice.