China’s aviation conglomerate AVIC debuts the country’s first fully solar-powered high-altitude drone China’s solar-powered high-altitude drone makes maiden flight 2.9w 09-09 18:16 READ MOST 北京多所高校禁用罗马仕充电宝 公司致歉：若有缺陷将依法担责 9947 06-15 13:15 POPULAR TAGS 罗马仕 安全 充电宝
