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Japan will develop a manned submersible with a depth of 12,000 meters
  Recently, the Japanese government's marine research and development institution is developing a manned submersible with a depth of 12,000 meters for the exploration of deep-sea resources.
It is reported that the deep submersible was named "Deep Sea 12000" and was under the responsibility of the director of the Marine Engineering Center of the Japan Marine Research and Development Agency, Ishizaki, and the Japanese government's Ministry of Education, Culture, Sports, Science and Technology.
It is understood that the deepest trench in the world is in the Mariana Trench in the southeast of the Ogasawara Islands in Tokyo, with a depth of 109,100 meters. At present, the “Deep Sea 6500†submersible of the Japan Ocean Research and Development Agency can only sink to a depth of 6,500 meters, and the 12,000-meter deep submersible being developed will be expected to realize the ultra-deep sea exploration not seen by the predecessors.