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China has welcomed the visit by the US delegation. Foreign Ministry spokeswoman Hua Chunying said last Friday that "we are willing to hold negotiations with the US on the basis of mutual respect and equality".
China is the world's largest market for new energy vehicles, with 3.81 million such vehicles on its roads by the end of 2019, but so far its regulations on electric car safety have been voluntary, which has led to a variety of different strategies in battery design and thermal management.
China has seen an increasing application of unmanned technology in areas such as self-driving cars, drones and smart factories in recent years.
China is developing a "driverless" high-speed train that is expected to be put into use during the Beijing 2022 Winter Olympics, a senior railway official has said.
China is set to become the world's largest 5G market by 2025, with 460 million 5G users, according to a forecast by the Global System for Mobile Communications Association, a global telecom association.
来源：资阳报