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An international team of scientists from Norway, the Netherlands and Spain found urea helps set concrete. Therefore, the most economical way to build a base on the moon is to use lunar materials and add urine to solidify cement. The research won the fantasy prize category.
An Ethiopian Airlines 737 MAX flight crashed on March 10, killing all 157 people onboard. In October, a Lion Air 737 MAX flight crashed into the Java Sea, leaving 189 dead. Both crashes occurred minutes after takeoff.
An exhibition is planned to be held in Beijing in early April, according to Li, showcasing kitchen waste on-site disposal technologies and equipment, as well as those related to sorting.
An Iranian flag is pictured at the United Nations headquarters in New York, Jan 8, 2020. [Photo/Xinhua]
An employee works on a production line of Sinotruk Fujian Haixi Truck Co in Zhangzhou, Fujian province, on July 7. [ZHANG BIN/CHINA NEWS SERVICE]
