How high is the level of science and technology in China?

At present, the level of science and technology in China is generally advanced in the world, especially in the fields of high-tech aerospace, aviation, military, high-speed rail, nuclear power, UHV, communication and medicine. Some areas are at the advanced level, but there are still many areas that need to catch up with developed countries, such as machinery manufacturing, medical care and education, which are closely related to people's lives, and are still developing.