Unmanned aircraft hoped to bring cleaner upper
Updated: 2014-03-10 10:56
(chinadaily.com.cn)
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A technician prepares the aircraft for a test to disperse fog in Jingzhou city, Hubei province on Saturday. [Photo/icpress.cn] |
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A technician prepares the aircraft for a test to disperse fog in Jingzhou city, Hubei province on Saturday. [Photo/icpress.cn] |
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