A magnitude is how long this guy is and direction is at what angle it is.

大小是指它的长度,而方向是指它与坐标轴的夹角

耶鲁公开课 - 基础物理课程节选

That's what this arrow at the right shows, the direction of the flow of information.

这就是右边这个箭头的含义,即信息流动的方向

耶鲁公开课 - 生物医学工程探索课程节选

Now, we can look at this from the other direction.

现在我们从另一个方向来讨论这个问题。

耶鲁公开课 - 心理学导论课程节选

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