Group 1 - Since the beginning of the 14th Five-Year Plan, central enterprises have actively undertaken major national scientific and technological tasks, with an average annual growth of R&D expenditure of approximately 6.5%, exceeding 1 trillion yuan for three consecutive years, effectively supporting steady national economic development [1] - The introduction of TRIZ theory has provided new ideas for overcoming the challenges in the monitoring precision of the oil metal debris monitoring module, which is crucial for the stable operation of aircraft engines [1] - The AEF1200 turbofan engine, which is close to 2 meters in diameter, is the first domestically developed high-bypass dual-rotor turbofan engine for large transport aircraft in China [1] Group 2 - The Y-20B aircraft equipped with a new domestic engine has improved range, payload, and speed, with the new high-bypass turbofan engine providing greater thrust and fuel efficiency [2] - Central enterprises are accelerating the layout of strategic emerging industries, with an average annual investment growth rate exceeding 20%, accumulating investments of 8.6 trillion yuan [2] - The China General Nuclear Power Group's Delingha 1 million kilowatt integrated solar thermal storage project has successfully connected 800,000 kilowatts of photovoltaic power generation to the grid, with the 200,000 kilowatt solar thermal storage power generation expected to officially commence production by the end of this year [2] Group 3 - During the 14th Five-Year period, the total assets of central enterprises increased from 68.8 trillion yuan at the end of the 13th Five-Year Plan to 91 trillion yuan by the end of 2024, with an average annual growth rate of 7.3% [3] - The quality of state-owned assets has improved, and the financial foundation has become stronger [3]