In this paper the propagation attenuations of the radio waves in two different cases are discussed.
本文讨论了两种通讯方式的电波传输损耗。
2
Two person's tacit understandings, in two heart's range attenuations, approach gradually slowly in unconsciousness each other.
两个人的默契，在逐步将两颗心的距离缩短，在无意识中垂垂接近相互。
3
In combination with the result, the author points out that radio wave attenuations in roadway is mainly by wave refraction and reflection rather than wall absorption.