请输入您要查询的英文单词:

 

单词 space environment
释义

space environment


space environment

The region beginning at the lower boundary of the Earth's ionosphere (approximately 50 km) and extending outward that contains solid particles (asteroids and meteoroids), energetic charged particles (ions, protons, electrons, etc.), and electromagnetic and ionizing radiation (x-rays, extreme ultraviolet, gamma rays, etc.). See also ionosphere.

space environment


space environment

[′spās in‚vi·ərn·mənt] (astronomy) The environment encountered by vehicles and living creatures in space, characterized by absence of atmosphere.
随便看

 

英语词典包含2567994条英英释义在线翻译词条,基本涵盖了全部常用单词的英英翻译及用法,是英语学习的有利工具。

 

Copyright © 2004-2022 Newdu.com All Rights Reserved
更新时间:2024/11/13 22:51:53