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But he ruled out the possibility of working out a quantitative target initiated by the government.

Li said that while the country has seen much progress in promoting PPP in the past two years, a variety of institutional barriers still hinder PPP development.

Since the establishment of strategic partnership between China and Uzbekistan in 2012, the two countries have seen a leap forward in the development of bilateral relations, with political mutual trust, economic cooperation and cultural exchanges all promoted to a new stage.

He called on the two sides to steadily push forward cooperation in major infrastructure projects, noting that China is willing to work with Serbia to put the Hungary-Serbia railway into operation at an early date.

He called for a sound environment for S&T personnel. China has the world's largest army of S&T workers, which makes world-level research possible, the president noted.