答案是，问天实验舱和梦天实验舱上的两对双自由度柔性太阳电池翼，发电量占整个空间站电能的80%。除了标志性的柔性太阳翼，你知道中国空间站的机械臂如何工作？一起来看看吧 How does the China Space Station maintain power?The answer comes down to these two pairs of flexible solar arrays, which generate 80 percent of the space station's electricity. Do you know how the Tiangong space station's robotic arms work? Check out this video.