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"China is willing to share knowledge of advanced new energy technologies－including hydropower, photovoltaics and wind power－with other countries," he said.

"CES2019 is just the beginning for Hisense this year, and we're excited to continue to spearhead innovation in TVs around the world in 2019 and beyond," said Gold.

"Canine training centers in China have adopted a training method called positive reinforcement, which helps keep the rejection rate of canines at 5 to 10 percent during the training process," said Bai Yan, a police officer in Hangzhou, Zhejiang province with 13 years experience in police dog training.

"But we need to address several policy and technology issues to ensure the success and mainstream adoption of self-driving vehicles. For example, we need to establish standards for signs and lighting on highways, devise new approaches to regulating spectrum, liability, insurance and safety, and consider revised highway rules, parking structures and how we approach car ownership."

"By hammering on each wooden railroad tie, workers can tell how much it has eroded and when to replace them with new ones," Dong said, adding a routine check of the ties is arranged once a month.