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In China created an acoustic rifle for dispersal of meetings
20:59,
September 20, 2019
@Trud
#Science
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Feature of the device is the small vessel with the inert gas, acting as a source of infrasonic waves...
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Analysis
×
Places
Place ranking
1 142
China
Capital
Beijing
1 142
477
Beijing
Country
People's Republic of China
477
272
Hong Kong
272