文章运用矩量法对大张角对数周期天线的电性能进行了分析。
The method of moments is used to analyze the electric characteristics of large Angle LPDA.
文章运用衍射理论，给出了实际光栅系统分辨本领的修正公式。
This paper applies diffraction theory, has given the corrected formula of the resolving power of actual grating system.
文章运用文献资料方法，对中华武术与人体养生的关系进行了分析。
The article analyses the relations between Chinese Wushu and Good health keeping by using documents and files.
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