He also said the daily output of N95 masks, which are used for medical protective purposes, had reached 116,000, up 48 percent from a day earlier.
He added that he accepted the school's invitation because he thought it would help children master knowledge of aircraft.
He added: "And there is, of course, a strong connection to Edinburgh. The city's zoo is home to the famous giant pandas Tian Tian and Yang Guang, and the Panda Brew team also has links here."
He Chenglin contributed to this story.
He added that local public security authorities have cracked more than 8,700 cases and arrested 16,000 suspects during the campaign.
He added the company will spare no efforts at introducing more outstanding products and technologies in China.
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He added that the legal rights of persons assigned to vocational training centers are duly protected and they are not subject to any arbitrary detention, let alone ill-treatment there.
He also said he hoped that participants will deepen communication and cooperation during the expo and discuss and share ways of developing the digital economy to better benefit people all over the world.
He also introduced a three-step goal for China's tourism industry to lead China to become a strong tourism country by 2040.
He added that China and the US should focus more on cooperation in areas including infrastructure, finance and security.