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China has detected global gravity field data for the first time by using its own satellite, becoming the third country to independently detect the global gravity field in the world after the US and Germany. 

The gravity field data was acquired recently by Tianqin-1, China's first satellite for space-based gravitational wave detection, which was launched on December 20, 2019, said Luo Jun, chief scientist of China's Tianqin gravitational wave detection program. He is also a deputy to the National People's Congress at the ongoing two sessions, according to a report of CCTV. 

The data is of great strategic significance to the national economy and people's livelihood, according to scientists. 

It will serve geodesy, geophysics, oil and gas resource exploration, national defense and security, and help cope with global climate change, disaster prevention and reduction and other common challenges faced by mankind, researchers said.

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