与地面太阳能发电相比，太空的发电条件堪称完美：无云层遮挡、无昼夜交替、无大气衰减。在地球静止轨道或地球太阳同步轨道上，单位太阳能电池板可接收的太阳辐射量为地面的8至10倍，且能实现24小时连续发电，具备成为稳定“基荷电源”（连续稳定运行的基础电源）的潜力。同时，空间太阳能电站的扩展能力极强，通过扩大规模能满足全球能源增长需求。如果在地球静止轨道铺设一周一公里宽的太阳能电池带，一年接收的能量相当于地球可开采石油的总量。
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build system (fpm in this case) to give LFortran the dependency graph and
Whereas the Flip is huge, the second-gen Polaroid Go is tiny. It weighs just over a pound and fits easily in the palm of my hand — which is saying a lot, given I’m petite and a little over five feet tall — making it the most portable instant camera on our list. If its images were more true to life and didn’t require you to sheild them from the light for about 15 minutes while developing, I’d call it the best instant camera for kids or travel.