In order to make calculation of the lightning protection on ultra high voltage (UHV) line, a new tower model, namely multi-wave impedance model was constructed.
为了超高压输电线路防雷计算的需要，建立了新的杆塔模型，即多波阻抗模型。
The concept of input wave impedance is introduced in order to generalize the developed theory to multi-layer medium cases.
接着引入输入波阻抗的概念，把理论推广到多层媒质的情况。
The concept of input wave impedance is introduced in order to generalize the developed theory to multi-layer medium cases.
接着引入输入波阻抗的概念，把理论推广到多层媒质的情况。
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