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China's first support ship customized for the domestically developed 10,000-meter-deep manned submersible was launched in Mawei District of Fuzhou City in southeast China's Fujian Province on Sunday. The ship has a total length of 87.2 meters, a width of 18.8 meters, a moulded depth of 7.4 meters, a trial speed of 14.3 knots and a displacement of 7,000 tons. The ship is fitted with rudder propellers and telescopic side thrusts with an endurance exceeding 15,000 nautical miles.