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According to reports, this submersible has two weights and a pressurized water tank. When a dive is required, the pressurized water tank fills the water and begins to dive; when it needs to hover in the water, it throws a counterweight. If the power unit is started at this time, the HOV can start working; when it needs to float, it throws the second weight, and at the same time, adding air to the pressure tank, discharging the sea water, and floating up.
This newspaper, Cui Weicheng, the first deputy chief engineer of the national "10th Five-Year Plan" 863 Program "7000m Manned Submersible", said in the "15 Years Achievement Exhibition of China's Ocean Resources Research and Development" held recently: "China's independent research and development '7000 meters manned submersible (referred to as 7000 meters HOV)' has now entered the final assembly stage, and will be able to dive into the water next year."