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用于土壤水分测量的磁共振射频线圈宽频匹配方法
吴嘉敏1,2,*(),贺玉成1,徐征3,*(),朱延河2,姜文正1
A Wide-Band Matching Method for Radio Frequency Coils Used in Soil Moisture Measurement
Jia-min WU1,2,*(),Yu-cheng HE1,Zheng XU3,*(),Yan-he ZHU2,Wen-zheng JIANG1

图8. 沙质土壤和石英砂样品

Fig.8. Sandy soil and quartz sand