I've just realized. So I'll do it like that.

我刚刚识到，所以我将往标一。

This little subscript two tells us there's two of the hydrogen atoms in this molecule.

个小标 2 告诉我们个分子中有两个氢原子。

Later, for no special reason, the fashion became to render the number as subscript H2O.

后来, 由于没有特殊原因, 时尚变成了将数字表示为标H2O。

Oh, yeah, that means velocity with a  subscript of x means velocity final in the x-direction.

哦，是的，标为 x 表示 x 方向的最终。

Now we're going to--notice there's no subscript on this P and you'll see why in a second.

现在我们要——注个 P 上没有标，你马上就会明白为什么。

Similarly, statistical significance can be neatly indicated using subscripts and footnotes, as I did in the original table.

同样，可以使用标和脚注整齐地表示统计显性，就像我在原始表格中所做的那样。

And position final, or x, minus position initial, or x with a subscript of zero, equals  change in position or displacement.

最终位置或 x 减去初始位置或标为零的 x 等于位置或位移的变化。

There are not exponents, they're just a way of indexing what we're talking about, since I want to save subscripts for different indices later on.

没有指数， 它们只是对我们正在讨论的内容进行索引的一种方式，因为我想稍后保存不同索引的标。

We can write this out as an equation for each coil separately, using a subscript P for the primary coil and a subscript S for the secondary coil.

我们可以将其分别写为每个线圈的方程式，使用标 P 代表初级线圈，标 S 代表次级线圈。

Now, there are three basic ways  you will see variables identified as vectors; an arrow over a variable, a subscript on the  variable, or the variable in boldface.

现在, 有三种基本方式, 你会看到变量被识别为向量;一个箭头在变量上, 一个标在变量上, 或者变量用黑体表示。

Because change  in time equals time final minus time initial, with time initial equal to zero, change in time  equals just time final and the College Board drops the final subscript from the variable.

因为时间变化等于时间终点减去时间初点, 时间初点等于零, 所以时间变化等于时间终点, 大学理事会从变量中删除最后的标。