And the ratio of the image distance to the object distance is also negative.

图像距离与 身体距离也是负数。

It’s the equation that relates the object distance and the image distance to the lens’s focal length.

这是将物距和像距与镜头焦距联系起来的方程式。

It's the equation that relates the object distance and the image distance to the lens's focal length.

这是将物距 和像距与镜头焦距联系起来的方程式。

The image distance will be positive if the image is on the opposite side of the light source.

如果图像是，则图像距离为正 在光源的另一侧。

The distance between the image and the lens is the image distance and is related to the object distance and the focal length by a very important equation.

像与镜头的距离是像与物的距离与焦距有关的一个很重要的方程。

We will use the object distance and the focal length of the lens to find the image distance, the location where the image forms on the other side of the lens.

我们将使用物距和镜头的焦距来找到像距，即在镜头另一侧形成图像的位置。