BEIJING, May 29 (Xinhua) -- The following is a summary of published science and technology news of China.

SHENZHOU-18 CREW SPACEWALK

Shenzhou-18 crew members on board China's orbiting space station completed the first spacewalk of their mission at 6:58 p.m. (Beijing Time) on Tuesday, according to the China Manned Space Agency (CMSA).

Ye Guangfu, Li Cong and Li Guangsu worked for about eight-and-a-half hours in completing multiple tasks, including the installation of space debris protection devices, and were assisted by the space station's robotic arm and a team on Earth.

ASTHMA THERAPY

A team of Chinese scientists have developed a promising therapy using genetically engineered immune cells, which has been shown to induce long-lasting remission of asthma in mice following a single injection.

The study published on Monday in the journal Nature Immunology reported an encouraging animal experiment result, in which a single infusion of genetically engineered immune cells in mice led to sustained repression of lung inflammation and alleviation of asthmatic symptoms, without any conditioning regimen.

C919 COMMERCIAL OPERATION

The sixth C919 jetliner delivered worldwide joined the China Eastern Airlines fleet on Tuesday, indicating the acceleration of commercial operation of China's homegrown large passenger aircraft.

This came one year after the first commercial flight of C919 was made. With its self-developed trunk jetliner, China aims to secure a share of the global civil aviation market, which is currently dominated by Boeing and Airbus. Enditem

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