Often that signal gets amplified so it can be used, same thing happens inside cells and there's some output that's generated.

通常这些信号要放大后才会产生作用,诱发细胞内发生一些变化,并产生某种输出信号

耶鲁公开课 - 生物医学工程探索课程节选

That's what's illustrated here with the end result being that there's some change in the life of the cell.

这里显示的是,在信号放大传递后,细胞内发生的变化

耶鲁公开课 - 生物医学工程探索课程节选

The second particle was deflected almost not at all. But what he could tell from the fact that there was a second particle at all, and the fact that it was in this direction, is that in addition to his negative particle, he also, of course, had a positive particle that was within this stream of rays that were coming out.

粒子的强烈信号,有着强烈的对比,第二个粒子几乎，不发生偏转，他能判断这是，第二个粒子的原因是它在这个方向,所以在出射射线中,除了有带负电的粒子外。

麻省理工公开课 - 化学原理课程节选

There's a diverse range of responses that might occur, but that response is initiated by this simple chemical process of a ligand binding to a receptor.

细胞对外界信号可能会发生不同的反应,但这些反应都源自,配体和受体结合这个简单的化学过程

耶鲁公开课 - 生物医学工程探索课程节选

Well, what happens when the signal gets to the end of the axon?

那当信号传导至轴突末端后又会发生什么

耶鲁公开课 - 生物医学工程探索课程节选

When they receive the signal they make - they change in a very specific way and the cell can recognize this change that's occurred at the cell surface.

当它们接收到信号之后,就会发生十分特殊的变化,细胞能够识别自身表面发生的这种变化

耶鲁公开课 - 生物医学工程探索课程节选