China science, technology news summary -- March 19

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BEIJING, March 19 (Xinhua) -- The following is a summary of published science and technology news of China.

SYSTEM FOR FINDING ROCKET DEBRIS

China's Xichang Satellite Launch Center announced the development of a new positioning system that can greatly shorten the time searching for rocket debris.

The system has proved efficient in seeking out fallen rocket pieces after the center launched the 54th BeiDou satellite into space. The satellite was sent into space by a Long March-3B carrier rocket. With the guidance of the system, the center staff just spent 25 minutes finding the rocket boosters, while in the past, it would take them several hours or even half a month to complete such a task.

PLANT GENOME ENGINEERING

A joint team from China and the United States has established CRISPR-Cas12b, a new genome engineering system for plants.

The researchers said their study established CRISPR-Cas12b as the third promising system, after CRISPR-Cas9 and CRISPR-Cas12a, for plant genome editing. The system holds potential for generating crops effective in curbing diseases, pests and the effects of climate change.

SUPERCOMPUTER TO FORECAST COVID-19 SPREAD

Chinese researchers have developed a system based on the supercomputer Tianhe-1 to forecast the spread trend of COVID-19 and evaluate the effect of prevention and control.

Using technologies like big data analysis, the system can quickly forecast the trend of the epidemic in key areas according to the real-time situation, providing early warnings for accurate prevention and control.

ULTRASONOGRAPHY TREATMENT

Chinese scientists have shared the ultrasonographic features of the novel coronavirus pneumonia and the treatment experience of lung ultrasonography on patients.

Compared with the early chest computerized tomography, ultrasonography is more effective in screening respiratory failure causes, assessing the severity of the disease, tracking its evolution, as well as providing individualized guidance for treatment. The findings are published in the journal Intensive Care Medicine. Enditem

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