Students attend aviation-themed summer camp in Yunnan (1/5)

A student learns how to use an emergency oxygen mask during an aviation-themed summer camp for primary and middle school students in Kunming, southwest China's Yunnan Province, July 17, 2019. (Xinhua/Qin Qing)

Students attend a lesson on cabin fire emergency during an aviation-themed summer camp for primary and middle school students in Kunming, southwest China's Yunnan Province, July 17, 2019. (Xinhua/Qin Qing)

Students learn from an instructor (2nd R) in a COMAC C919 flight simulator during an aviation-themed summer camp for primary and middle school students in Kunming, southwest China's Yunnan Province, July 17, 2019. (Xinhua/Qin Qing)

Students attend an etiquette lesson during an aviation-themed summer camp for primary and middle school students in Kunming, southwest China's Yunnan Province, July 17, 2019. (Xinhua/Qin Qing)

A student (R) learns from an instructor in an Airbus A320 flight simulator during an aviation-themed summer camp for primary and middle school students in Kunming, southwest China's Yunnan Province, July 17, 2019. (Xinhua/Qin Qing)