long wave cycle

• 长波

long wave cycle的用法和样例：

例句

1. In radio communication, either short or long waves may be used.
   无线电通讯可以采用短波也可以采用长波。
2. Short wave lengths correspond with high frequencies,and long wave lengths to low frequencies.
   短波波长和高频相对应，长波波长与低频相对应。