test frequency range

• 测试频带

test frequency range的用法和样例：

例句

1. We use the term bandwidth to represent such a frequency range.
   我们用频带宽度这个词来代表这样的频率范围。
2. They are very compact in time and the frequency bands of interest are narrow.
   它们在时间上是非常紧致的同时有意义频带是狭的。