narrow-band signal

• 窄频带信号

narrow-band signal的用法和样例：

例句

1. This means that a broad band pulse that was strong and coherent when it set on its way will be smeared across a time-span of several milliseconds when it is received on Earth.
   这就意味着本来在出发的时候强烈而一致的宽频带信号在到达地球的过程中会逐渐地被拖成几毫秒的长度。