Some people like to use an arrow, and the arrow points in the direction of the more electronegative end.

也可以用箭头，箭头指向,带负电的一极。

麻省理工公开课 - 固态化学导论课程节选

And I am going to let this arrow somehow indicate the value of the incident energy.

我将用这个箭头,来揭示,入射能量的值。

麻省理工公开课 - 固态化学导论课程节选

Instead if we want this pointer to represent the address of something in as much as it points at that address let's just draw an arrow.

如果我们想要让这个指针表示,数据的地址，它指向的地址,我用一个箭头表示。

哈佛公开课 - 计算机科学课程节选

You might have also heard about the RISC complex, or the RNA silencing complex, and these are the biological mechanisms that are involved here and only shown by orange arrows on this slide.

你们也可能听说过RISC复合体,也叫RNA沉默复合体,幻灯片上给出了这些涉及的生物机理过程,并将它用橙色的箭头指示出来

耶鲁公开课 - 生物医学工程探索课程节选

I write it without an arrow here.

在这里我用不带箭头的 a 写出来

耶鲁公开课 - 基础物理课程节选

So, for the most part any time we talk about or draw pointers an arrow suffices, which really 71 in there is a number like 71, which is the literal byte that the F is actually in in RAM, but frankly who cares?

所以，每次我们讨论,或者用箭头表示指针,在指针里面有一个数字，如,那是F在RAM中的字节，但是谁在乎它呢？

哈佛公开课 - 计算机科学课程节选

If you want to add two vectors, you can add the arrows by the rule I gave you or just add the components of x of the two guys to get the component of the sum and likewise for the y.

如果要把两个矢量相加,你可以用我教给你们的箭头相接的方法,或者就将二者的 x 分量相加,得到和矢量的 x 分量,y 方向也是这样

耶鲁公开课 - 基础物理课程节选