到南非看这个国际大科学工程，没想到负责人用中文说“谢谢”

Core Viewpoint - The Square Kilometre Array (SKA) is a significant international scientific project that has attracted global attention, particularly due to China's deep involvement in its construction and operation [1][3]. Group 1: Project Overview - The SKA is the world's largest integrated aperture radio telescope, funded by multiple countries, consisting of low-frequency arrays in Australia and mid-frequency arrays in South Africa and eight southern African countries [3]. - The project is named after its total receiving area of approximately one square kilometer [3]. Group 2: China's Contribution - China has made substantial contributions to the SKA, including the design and manufacture of 64 mid-frequency antennas, with several already installed and others in transit [5][7]. - The mid-frequency antennas are critical components of the SKA, with their structure being designed and constructed by a Chinese team, led by the China Electronics Technology Group Corporation [5][7]. - The antennas' main reflector consists of 66 independent panels, each adjusted with sub-millimeter precision to ensure smoothness and specific curvature, which is essential for collecting radio waves from space [5][7]. Group 3: International Collaboration - The SKA project exemplifies international collaboration, bringing together scientists and engineers from various countries to achieve common scientific goals [7][9]. - The SKA regional science center plays a crucial role in data aggregation from both South Africa and Australia, allowing global access to astronomical data [7][9]. Group 4: Acknowledgments and Future Prospects - South African officials expressed gratitude towards China for its core support in advancing the country's science, technology, and innovation systems [9]. - The project is expected to lead to further advancements in understanding the universe, with more Chinese-designed and manufactured antennas anticipated to be established in the Karoo region [9].