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For his part, Zarif appreciated the positive and constructive role that China has been playing in Iran's nuclear talks.

The ability to command an army to win a regional war in the age of information is the goal of this new type of command headquarters, the guideline said.

Named after a mythical dragon, Jiaolong reached its deepest depth of 7,062 meters in the Pacific's Mariana Trench in June 2012 and started its five-year trial period in 2013.

Ever since, the two countries have maintained close contacts at different levels, and bilateral cooperation has been unprecedentedly deepened and broadened, the Chinese premier said.

Xi stressed that consultative democracy should be enhanced at the grass-roots. Local Party departments, governments and judicial departments should improve the transparency of their work so that common people will be well informed. They should also listen to the people through regular and close contacts.