The deepest depth of deep-sea exploration can reach 109 16 meters, which is Trieste in the United States. Trieste was built by piccard and his son in 195 1 year. Length 15. 1 m, width 3.5 m, can carry three people. 1953 successfully dived to 3150m in the Mediterranean Sea in September. 1955, the submersible was sold to the United States, and Picard and his son built the new Trieste for the United States. The new submersible was built in 1958. The first test dive reached 5600 meters, and the next year reached 73 15 meters. 1960,65438+10, Trieste first dived into the Mariana Trench, the deepest abyss in the world, with a diving depth of10916m, making it the deepest manned submersible in the world.

The maximum and minimum depth of China probe "Jiaolong" is 7000m. Jiaolong manned submersible is a manned submersible designed and independently developed by China, and it is also a major research project in the 863 Program. 20 10 From May to July, the manned submersible "Jiaolong" made several dives in the South China Sea of China, and the maximum dive depth reached 7020 meters.