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Shenzhou-21 crew makes first public appearance after record 210-day mission_我的网站

一 |     8月25日豆粕震荡收涨，M2701合约报收3245元/吨，收涨0.40%。昨日外盘美豆收盘上涨，11月合约报收1238.75美分/蒲式耳，收涨1.08%。    (ECNS) -- Shenzhou-21 astronauts Zhang Lu, Wu Fei and Zhang Hongzhang met the press at the China Astronaut Research and Training Center in Beijing Wednesday, their first public appearance since returning to Earth and completing post-flight quarantine and rehabilitation.    Their 210-day mission set a new record for the longest single crew stay by Chinese astronauts.    During the mission, the crew completed three spacewalks, installed space-debris protection devices and carried out experiments in fundamental physics under microgravity, materials science, life science, space medicine and space technology.    The mission also saw several firsts in China’s crewed space program: a spacecraft return delayed after a space-debris strike, a crew switching spacecraft for the journey home, and an emergency spacecraft launch.    Zhang Lu completed seven spacewalks across the Shenzhou-15 and Shenzhou-21 missions, setting a record for a Chinese astronaut. Wu Fei, who helped develop the Tianhe and Wentian modules before becoming an astronaut, said operating the equipment in orbit gave him a sense of familiarity. Zhang Hongzhang shared several scientific breakthroughs achieved during the mission, including China's first successful aeroponic cultivation of cherry tomatoes and wheat in orbit, the first closed-loop breeding of mice in space, and the validation of key technologies for efficient spectral and water-fertilizer utilization.    An official from the China Astronaut Research and Training Center said the three astronauts are in good physical and mental condition, with their muscle strength, endurance and cardiorespiratory fitness largely restored to preflight levels. They have entered a recovery observation phase and will return to regular training and work following a final health assessment.    (By Intern Yang Hongran, Zhang Dongfang)                    。基本面来看，年初南美大豆丰产兑现，叠加今年美豆种植面积增加，全球大豆供给处于宽松周期。目前美豆正处于生长关键阶段，USDA作物生长周报显示，截至8月23日当周，美豆优良率为60%，较前一周下降1个百分点，去年同期为69%。上周ProFarmer作物巡查后预测，本年度美豆单产为53...。

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