Huawei has lost its overseas market, vivo and Xiaomi have suffered setbacks one after another. Why is it so difficult for domestic production to go overseas?
Zaozhidao丨Apple begins trial production of iPhone 14; CATL will mass-produce new lithium iron manganese phosphate batteries in the second half of the year
Teachers and students of the School of Management of Chengdu Aviation Vocational and Technical College carried out the "Three Going to the Countryside" social practice activities