line-of-sight transmission and reception里面的line-of-sight

来源：学生作业帮编辑：作业帮分类：物理作业时间：2024/05/25 18:42:37

line-of-sight transmission and reception里面的line-of-sight
网络释义是视线,直达等.
希望有学通信的朋友给出正解,并且给出它的中文定义.

line-of-sight transmission and reception：视距传输与接收.
利用超短波、微波作地面通信和广播时,其空间波在所能直达的两点间的传播.其距离同在地面上人的视线能及的距离相仿,一般不超过50km.
与此对应的是“非视距”：最直接的解释是,通信的两点视线受阻,彼此看不到对方,菲涅尔区大于50%的范围被阻挡 .

When ,we slowly lost in the line of sight of each other,you 英语翻译1.Optical Gas Detection Open Path (line-of –sight) Gas D Finally,you look at,I have to leave your line of sight The preparation vanishes in your line of sight 这句话什麽意思? catch sight of与catch a sight of的区别 at the sight of 和AT SIGHT OF的区别? lose the sight of 与 lose sight of的区别 caught a sight of 和 caught sight of 的用法? catch sight of 与catch sight by lost sight; disappeared; out of sight lose sight of in the sight of