How do I read signal and noise ratings?

我要如何阅读的信号和噪声评级？

youdao

A subtractor (16) subtracts the crosstalk signal from a read signal.

减法器(16)从读取信号中减去所述串扰信号。

youdao

Apparently, investors read the report as a signal that most of the big Banks were well-capitalized and wouldn't need giant amounts of new money from taxpayers.

显然，投资者们将这份报告解读为绝大多数大银行资产状况良好的信号，并认为他们不需要巨量来自纳税人的新增资金。

youdao

But even here there is a signal to be read: the signal of a person who is not very good at managing signals.

FORBES: The Business of Nonverbal Communication: How Signals Reflect Your Brand

One challenge would involve creating a magnetic head that could hover over those dots, read their signal and write new data onto the grid.

FORBES: Magazine Article

If not, is this sort of a signal -- should we read it as a signal?

WHITEHOUSE: Press Briefing