中国成功发射实践二十八号卫星

Group 1 - The core point of the article is the successful launch of the Shijian-28 satellite by China using the Long March 7A rocket, marking a significant achievement in China's space exploration efforts [1][3] - The Long March 7A rocket has now completed a total of 13 launch missions, with this being its fifth launch in 2025, indicating a trend of increasing reliability and efficiency in its operations [3] - The launch process has improved significantly, with the time required for launch preparation reduced from 35 days to 19 days, demonstrating enhanced operational efficiency to meet high-density launch demands [3] Group 2 - The Shijian-28 satellite was developed by the China Aerospace Science and Technology Corporation's Fifth Academy, showcasing the capabilities of China's aerospace engineering [1] - The Long March 7A rocket is characterized as a new generation medium-sized high-orbit liquid launch vehicle, reflecting advancements in China's rocket technology [1] - This mission represents the 611th flight of the Long March series of launch vehicles, highlighting the extensive experience and history of the Long March program in China's space endeavors [3]