By solving problems: language and academic confusion, Pengxiang, as recommended by his professors, he uses the learning technology website to improve himself. He firstly uploads his unsure mechanical drawing into the learning platform by scanning the QR code in the textbook, and then, out of his surprise, the platform immediately shows him the 3D model the same as the one he uploaded. When he put his mouse on the model, it can rotate automatically and present all angles of mechanical image. In this way, Pengxiang can view more concise features of his difficulty. On the other hand, this learning platform provides him with other visual assistance like VR. When Pengxiang wants to explore more accurate details of model, he can just click the images and then wears a VR glass to see what he wants.