短語詞組短語propagation E factor 傳播因數(shù)Beam Propagation Factor 傳輸因子field pattern -propagation factor 場方曏性相對因數(shù);辰曏性相對因數(shù)beam propagation factor m -factor 光束傳輸因子factor of propagation 傳播系數(shù) 返回 propagation factor