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Secondly, slow-wave structure branch line couplers are researched. 接著研究了慢波結構分支線耦合器；
The characteristics of meander-line slow-wave structure are studied in the paper. 本文對微帶型曲折線慢波結構的特性參數進行了分析。
Their energy changes with the angle between the fracture strike and the in-line by a simple relationship of cosine function. The slow shear-wave attenuates fast… 快、慢橫波遇到反射界面時會產生各自的反射波、透射波和轉換波 ，使記錄復雜化 。模擬結果對裂隙發(fā)育地區(qū)的地震資料的采集、處理和解釋具有指導意義 。