Visitors look at a model cockpit at the China pavilion during the second China International Import Expo (CIIE) in Shanghai, east China, Nov. 8, 2019. The China pavilion showcases achievements China has made over the past 70 years, as well as its culture and landscape. (Xinhua/Jin Liwang)

A visitor walks past a photo of Beijing Daxing International Airport at the China pavilion during the second China International Import Expo (CIIE) in Shanghai, east China, Nov. 6, 2019. The China pavilion showcases achievements China has made over the past 70 years, as well as its culture and landscape. (Xinhua/Chen Jianli)

People visit the China pavilion during the second China International Import Expo (CIIE) in Shanghai, east China, Nov. 5, 2019. The China pavilion showcases achievements China has made over the past 70 years, as well as its culture and landscape. (Xinhua/Chen Jianli)

Visitors experience a simulator of China's manned submersible Shenhai Yongshi (Deep Sea Warrior) at the China pavilion during the second China International Import Expo (CIIE) in Shanghai, east China, Nov. 8, 2019. The China pavilion showcases achievements China has made over the past 70 years, as well as its culture and landscape. (Xinhua/Jin Liwang)

A man takes photos of a simulator of China's manned submersible Shenhai Yongshi (Deep Sea Warrior) at the China pavilion during the second China International Import Expo (CIIE) in Shanghai, east China, Nov. 5, 2019. The China pavilion showcases achievements China has made over the past 70 years, as well as its culture and landscape. (Xinhua/Chen Jianli)

Visitors experience a five-hundred-meter aperture spherical telescope through VR device at the China pavilion during the second China International Import Expo (CIIE) in Shanghai, east China, Nov. 8, 2019. The China pavilion showcases achievements China has made over the past 70 years, as well as its culture and landscape. (Xinhua/Jin Liwang)

Visitors sit in a model cockpit at the China pavilion during the second China International Import Expo (CIIE) in Shanghai, east China, Nov. 8, 2019. The China pavilion showcases achievements China has made over the past 70 years, as well as its culture and landscape. (Xinhua/Wei Hai)

Visitors look at model trains at the China pavilion during the second China International Import Expo (CIIE) in Shanghai, east China, Nov. 8, 2019. The China pavilion showcases achievements China has made over the past 70 years, as well as its culture and landscape. (Xinhua/Jin Liwang)