To beam power from a Dyson-Harrop satellite to Earth, one "would require stupendously huge optics, such as a virtually perfect lens between maybe 10 to 100 kilometres across," he says.

为了将能量从Dyson-Harrop卫星送回地球“需要奇大无比的透镜，比如10公里到100公里范围的完美透镜。”

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To beam power from a Dyson-Harrop satellite to Earth, one "would require stupendously huge optics, such as a virtually perfect lens between maybe 10 to 100 kilometres across," he says.

为了将能量从Dyson-Harrop卫星送回地球“需要奇大无比的透镜，比如10公里到100公里范围的完美透镜。”

youdao