A J-20 stealth fighter of China flies at the 11th China International Aviation and Aerospace Exhibition in Zhuhai, south China's Guangdong Province, Nov. 1, 2016. China's domestic-built J-20 stealth fighter made its public debut during the exhibition. China achieved major breakthroughs in scientific and technological development in 2016. (Xinhua/Li Gang)
A lithium-battery powered train suspended from a railway line runs in Chengdu, capital of southwest China's Sichuan Province, Nov. 21, 2016. China's first suspension railway line has conducted two-month test run. China achieved major breakthroughs in scientific and technological development in 2016. (Xinhua/Jiang Hongjing)
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