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An aerial view of Anak Krakatau volcano during an eruption at Sunda strait in South Lampung, Indonesia, Dec 23, 2018. [Photo/Agencies]
An employee shifts the LNG pipeline after filling the transport vehicle at the CNPC LNG center in Jiangsu province. [Photo by Xu Congjun/for China Daily]
An employee works at a steel plant in Ma'anshan, Anhui province. [Photo by Zhang Mingwei/for China Daily]
Among them, the Huai River saw the largest increase of around 80 percent, and the Yangtze River as much as 40 percent. Water levels are higher than usual.
Among top 500 firms, the key technologies of 402 companies were mainly developed independently, accounting for 80.4 percent of the total. The number of valid patents obtained by the top 500 firms increased by 8.46 percent in 2019, while the figure for international patents also grew significantly.
