Why can cnn be used in China?

China has advanced technology. Cnn is a convolutional neural network, which is a part of the research field of artificial intelligence. The most popular neural network is the deep convolution neural network, which was first developed by the United States. However, China's research technology in this field is higher and more advanced than that of the United States. In order to develop rapidly, the United States introduced its technology to China, so it can be used in China.