网站首页 英语词典
A wave that repeats, like the one above, is called a periodic wave.
如上图所示的周期性的波, 称之为周期波.
互联网
In addition to amplitude and wavelength, a periodic wave is characterized by its frequency.
除了振幅和波长, 周期波有它自己的频率.
国先网英语在线翻译词典收录了4367410条英语词汇在线翻译词条,基本涵盖了全部常用英语词汇的中英文双语翻译及用法,是英语学习的有利工具。