When a person takes a polygraph test, they have sensors attached to their body to pick up different signals.

当一个人接受测谎时，他们的身体上连有用来接收不同信号的传感器。

It must have been a different signal.

这一定是一个不同的信号。

And researchers can even make the materials release different signals over time.

研究人员甚至可以让这些材料随着时间的推移释放出不同的信号。

Try to make sure you learn and use a number of different transition signals.

尝试确保您学习并使用多种不同的转换信号。

Some, such as Japanese tits and pied babblers, have been known to combine different signals to make new meanings.

其中一些，例如日本山雀和花鹛，已知可以结合不同的信号来产生新的含义。

Both people are looking to broadcast different signals to the class, and the identity they care about will decide how they act.

这两个人都希望向全班发出不同的信号，而他们关心的身份将决定他们的行为方式。

But what we do know is that today it uses 80 billion different signals to decide what to recommend to you.

但我们所知道的是，今天它使用800亿个不同的信号来决定向你推荐什么。

" So essentially, we're having a conversation with the insect, because we can play back a bunch of different signals to females and ask her how much she likes each one."

“本质上来说，我们是在和昆虫对话，因为我们可以向雌性回放大量不同信号，观察她对每种信号的喜爱程度。”

If you walk up to the standard intersection in San Mateo, California, where I'm from, you might see 16 different signal heads with three sets of lights each and then maybe four to eight poles.

如果您走到我来自的加利福尼亚州圣马特奥市的标准十字路口，您可能会看到 16 个不同的信号头，每个信号头有三组灯，然后可能还有四到八根灯杆。

15 So, we know that flowers are advertising to their potential customers in the form of all these different signals, but how do we know which signals are used and how do we know whether pollinators respond to them?

07: 15 因此，我们知道鲜花以所有这些不同信号的形式向其潜在客户做广告，但我们如何知道使用了哪些信号以及我们如何知道传粉者是否对它们做出反应？