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"Jiaolong has brought back precious samples for research," said Chen Xinhua, chief scientist of the expedition's third stage.

On the development of the SCO, Li said that with the accession of India and Pakistan, the SCO will cover three-fifths of the Eurasian continent with nearly half the world population, which would make the regional organization the biggest in terms of area and population in the world and further improve its potential for cooperation and representation.

Hosting a symposium attended by representatives of non-Communist parties and those without party affiliation, Yu, chairman of the National Committee of the Chinese People's Political Consultative Conference, noted that the building of the Belt and Road is a significant political task requiring a united front.

"It is in line with the interests of all humanity and our commitment to our offspring to have an Antarctica of peaceful, stable, green and sustainable development," said Zhang.

In May, China's first home-grown large passenger jet C919 made its maiden flight; Chinese scientists announced they had built world's first quantum computing machine; and China's manned submersible Jiaolong conducted more dives in the sea.