About air quality in Beijing
https://english.cas.cn/newsroom/research_news/earth/202201/t20220124_299810.shtml
Seafloor mining: China’s “diving dragons”
https://www.sohu.com/a/518842503_726570
25-1 Seafloor mining: China’s „Diving Dragon“ program
The 4 submarines of the CAS Shenyang Institute of Automation come in the shape of clown fishes which are 3,5 m long and weigh 1,5 tons each. They can dive to about 4500 m depth for nearly 30 hours and have made already dozens of dives in the Pacific, Indian and Atlantic Oceans. In 2001, […]