Sometimes that image is real and sometimes it is a virtual image.

有时成的，有时则。

And we also know that it is going to be a real image, a true image.

我们知道这将一个，一个真正的图。

Because the glow persists for a little bit, if you repeat the path quickly enough, you create a solid image.

因为辉光会持续一段时间，果你足够快速地重复这个路径，就能形成一个。

If you put a piece of paper there the real image will show up and a virtual image will not.

果你在那里放一张纸，会显现出，则不会。

The object is placed just beyond the focal point of the objective lens, so light rays again form a flipped real image on the other side.

多。 物体被放置 在物镜焦点之外，因此光线再次 在另一侧形成翻转的。

A better way to do this is actually use lenses and figure out where those objects are going to be found and the virtual or true images.

更有效的方法利用透镜，确定物体所在位置以及生成的还。

The original subtended angle is the subtended angle of the unaided eye – the angle between the center of the objective lens and the height of the real image.

原始张角未使用辅助工具的眼睛的张角——即物镜中心与高度之间的角度。