短語詞組短語propagation delay path 傳送延時(shí)通道propagation E path 傳播途逕bevel propagation path 斜程測量light t propagation path 光傳播通路beam propagation path 光束傳播軌跡Origin And Propagation Path 源和傳播途逕Crack propagation path 裂紋擴(kuò)展路逕light propagation path 光傳播通路seismic propagation path 地震波傳播路逕 返回 propagation path