请输入您要查询的字词:
单词
电离层折射与电波传播延迟
释义
电离层折射与电波传播延迟
Encyclopedia
理学
电离层折射与电波传播延迟
释
ionospheric refraction and radio wave propagation delay
电离层折射与电波传播延迟
海拔高度60公里左右以上的地球大气圈,是由自由电子、正离子、负离子、分子和原子组成的处于部分电离或完全电离的部分。电波穿过电离层的传播过程中,在传播路径上等离子体不同的密度的折射和色散本领不同,折射使得电波传播偏离行进方向,色散效应导致电磁波传播的相速度高于真空中传播速度、群速度低于真空中传播速度,引起传播的延迟效应。
随便看
far less
Farley Mowat
farm
farm boiler
farm bookstore
farm coal-saving stove
farm dual-level management system
Farmer
farmer amateur education
farmer dance(nongak)
Farmer Got The Horsewhip
farmer household management
Farmer Law
farmer professional cooperative
farmers hunt for work in cities
farmers loan on guarantee
farmer-soldier
farmer's pledge loan
farmer 's spare-time school
farmer's vocational and skill training
farmer's water use cooperation organization
Farmers' Water Users Association
farmers’ petition
farmers’ sports
Farmer’s Daily
科学参考收录了854744条科技类词条,基本涵盖了常见科技类参考文献及英语词汇的翻译,是科学学习和研究的有利工具。
Copyright © 2000-2023 Sciref.net All Rights Reserved
京ICP备2021023879号
更新时间:2025/12/22 8:58:43