3 China unveils new unmanned equipment
China has developed several new types of high-tech unmanned equipment for the air and sea. A new drone with fixed wings has made a great breakthrough as it can not only cruise day and night, but also land using a parachute in case of emergency. Using the Beidou navigation system, one unmanned solar-powered vessel can pilot automatically both underwater and on land. It is used for hydrographic and topographic survey, monitoring ocean water quality and the ecological environment, and patrolling along the water's edge.
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