请输入您要查询的英文单词:

 

单词 Mach
释义 Mach
n. (in full Mach number) the ratio of the speed of a body to the speed of sound in the surrounding medium.
Phrases and idioms
Mach one (or two etc.) the speed (or twice the speed) of sound.
Etymology: E. Mach, Austrian physicist d. 1916
随便看

 

英语词典包含43808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:2025/6/8 0:39:12