This article discussed the relationship of the inductive current, the lever of electromagnetic field, and the loop circuit impedance by some test date concisely.
文章通过理论分析和试验数据，对感应电流与电磁场幅度及环路阻抗的关系进行了探讨。
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The relationship between occurrence of the disease and the ages of tree, soil, cultivars and the lever of management is investigated.