Xizi Otis recruitment

You should use Fuxin's portal crane to learn Chinese characters.

But what you said seems to be the problem of the EN8 1 portal crane. 8 1 requires the portal crane to be debugged in the maintenance state. Generally, it will learn by itself when it is turned off and turned on, so it should be repaired before it works properly. In fact, it is self-taught to complete the back door machine.