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美国军方现正开发一项延长间谍卫星寿命的技术。五角大楼并不是在研制复杂的化学推进剂,而是转向了地球上最简单的化合物之一——水。美国国防先进技术研究计划署正在同质子能量系统公司合作开发水火箭计划,这个项目将开发利用“封闭循环”可再生燃料电池为能源的卫星:它利用太阳能将水电解为氢,然后再将氢转化为电和水。产生的电将用来驱动推进器并运行其他特定的任务。使用再生能源的卫星能够在数小时内实现在关注区域阃的移动。“如果需要
The U.S. military is currently developing a technology to extend the lifespan of spy satellites. Instead of developing complex chemical propellants, the Pentagon turned to one of the earth’s simplest compounds, water. The U.S. Defense Advanced Research Projects Agency is working with Proton Energy Systems to develop a water rocket program that will develop satellites that use “closed-cycle” renewable fuel cells as energy: it uses solar energy to electrolyze water into hydrogen, and then Convert hydrogen into electricity and water. The electricity generated will be used to drive the propeller and run other specific tasks. Satellites that use renewable energy can move in the area of interest within hours. ”If needed