repeat a signal的意思|示意

Firstly, the obtained radar signal radio frequency, pulse width, repeat frequency are composed to get a combined probability assignment function of radar parameters by applying D-S method.

首先，对侦察雷达所能探测到的目标雷达信号的载频、脉宽、重频，应用证据理论将其组合，得到雷达参数的联合概率分配函数。

When the person begins to repeat what's been said, it's a signal of step two: turning back.

当此人开始重复他说了什么时？这便是第二步的信号了：倒回去。

It means that you repeat back some words he is using, sending a clear signal that you're listening carefully and that you think what he is saying is important.

意思是你复述一些他正在用的一些词语，发出一个明确的信号——你正在仔细地听，并认为他所说的一切是多么重要。