BEIJING, June 13 (Xinhua) -- The following is a summary of published science and technology news of China.

"WORLD FACTORY"

An unparalleled manufacturing enterprise and foreign trade volume bestowed the title "world factory" to Dongguan in southern China's Guangdong Province.

As the 24th Chinese city whose GDP has surpassed 1 trillion yuan (about 140.62 billion U.S. dollars), Dongguan has been forging ahead with high-tech, new energy, and originality, other than the stereotype as a massive contract factory for mobile phones and garments only.

MING DYNASTY SHIPWRECKS

Early on Sunday morning, China's scientific research ship Tan Suo Yi Hao (Discovery One), carrying the crewed submersible Shenhai Yongshi (Deep Sea Warrior), reached Sanya, south China's Hainan Province, marking the successful conclusion of a ground-breaking deep-sea archaeological investigation mission.

Over the past 20-plus days, the submersible, carrying members of a joint archaeological team, secured more than 200 cultural relics dating back about 500 years from the site of two ancient shipwrecks, which are located about 1,500 meters beneath the waters of the South China Sea.

Among the discoveries were an iron anchor measuring about 1 meter in length, a box that appears on first inspection to be made of wood, two pieces of timber, and various ceramic items, such as a blue-and-white porcelain jar, a blue-and-white porcelain dish and a white-glazed bowl.

PROTECTION OF CULTURAL HERITAGE

Pointing at a replica of a mural painting of Mogao Grottoes at Dunhuang Art Gallery in Lanzhou, the capital of northwest China's Gansu Province, a docent gives a detail that wowed the visitors.

"The original painting, featuring a panorama of Mount Wutai, is 13.5 meters long and five meters high. To digitalize the mural, experts took over 4,000 photos and conquered various technical difficulties to present the replica," he said.

Digitalization has become a vital means in the preservation of the millennium-old Mogao Grottoes, a UNESCO World Heritage site in Dunhuang boasting rich collections of Buddhist artworks -- more than 2,000 colored sculptures and 45,000 square meters of murals -- in 735 caves along a cliff. Enditem

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