The resolution index of electron diffraction in TEM is analyzed. The exactly experimental method is given for demarcating electron diffraction cameralength by Gold-monocrystal in TEM.
This can be a tedious process because the first time you create the plane, you have to rotate the camera and change the focal length at the same time to get a good match.
这个过程可能很乏味，因为你要先建立平面，还不得不去旋转摄像机，并调节焦距以得到好的匹配效果。
3
He also imagined radio, television and camera equipment at arm's length on the desk.