Technological innovation is a complete process from the generation of new products or processes to market application. It includes a series of activities from the generation of new ideas, research, development, commercial production to promotion; From commercial production to promotion, it is the process of promoting the creation of brand intellectual property rights.
According to the above definition, which of the followings belongs to technological innovation?
Technicians have introduced and absorbed foreign developed technologies, designed and produced high-speed EMUs with independent intellectual property rights, and have been applied to Beijing Tianjin, Wuhan Guangzhou and other lines