Unmanned aircraft hoped to bring cleaner upper
Updated: 2014-03-10 10:56
(chinadaily.com.cn)
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Experts and technicians check the conditions of the aircraft after the test on Saturday in Jingzhou city, Hubei province. [Photo/Xinhua] |
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Experts and technicians check the conditions of the aircraft after the test on Saturday in Jingzhou city, Hubei province. [Photo/Xinhua] |
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