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大江网
2 天
Chinese astronauts return to Earth safely, experiencing busy, joyful space life
JIUQUAN, Nov. 4 (Xinhua) -- The Shenzhou-18 crew consisting of three Chinese astronauts returned to Earth safely in the early morning on Monday, after completing a six-month space station mission.
6 天
研究人员开发了一种可以制造电动汽车的低成本电池材料
陈和他的团队的创新阴极使用了一种新鲜的氯化铁(FeCl3)阴极,这种材料既丰富又便宜,成本仅为典型锂离子电池阴极价格的1-2%。这意味着新的阴极可以通过将电池成本降低约30-40%来帮助解决电动汽车采用的问题。
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