As the core force of independent innovation in China's IC industry, Tsinghua Unigroup has applied for more than 10,000 patents so far. The patents cover the entire industrial chain, and the number of effective invention patents is at the forefront, laying the foundation for China's information...
Europe holds the second rank in terms of number of facilities with 143, followed by the Commonwealth of Independent States (CIS) with 48, Asia-Oceania with 23, the Middle East with 3, and Argentina with just one [1]. Thus, not only has the underground storage of natural gas become a ...