The X axis marks distance from Earth, and the Y axis tracks the passage of time.

X 表示距地球的距离，Y 表示所用的时间。

Let's use the familiar Cartesian coordinate system with its x and y axes.

让我们使用熟悉的笛卡尔坐标系及其 x y 。

And the 2nd number tells you how far to walk parallel to the y axis.

二个数字告诉你平行于y走多远。

This graph depicts, on the Y axis, the number of individuals dying of infection in the world.

该图在 Y 上描绘了世界上死于感染的数。

As a simple example, consider the transformation that rotates space 90 degrees around the Y axis.

作为一个简单的例子 考虑将空间绕Y旋转90度的变换。

The next thing we'll need to do is separate vectors into components along our new x and y axis

我们接下来要做的就是拆 具有新 x y 的元素的方向。

So we know that all the forces acting along the y axis should add up to zero, since they're all balanced out.

所以我们知道所有的力都沿着一个 y 可以加到零，因为它是平衡的。

Now, generally this is the " x axis" , this is the " y axis" , and in this graph you have two axes.

现在，通常这是“x ” ，这是“y ” ，在此图中有两个。

What about in three dimensions? Well, you add a 3rd axis called the Z axis, which is perpendicular to both the x and y axes.

在三维空间中呢 你添加了三个 叫做Z 它与xy都垂直。

And one of the reasons why the Israeli forces stood back was because of this 3D aspect to Gaza, that only X and Y axis — backwards and forwards and left and right.

以色列军队退缩的原因之一是加沙的三维方面，只能前后左右仅供。

Or rather, I should say p orbitals, because we're talking about 3 dimensional space here, so there can be one on the x axis, and one on the y axis, and one on the z axis.

或者更确切地说， 我应该说 p 轨道，因为我们在这里谈论的是 3 维空间， 所以可以有一个在 x 上，一个在 y 上， 一个在 z 上。