The company’s tech comes from an unusual source: a $100-million-endowed program at Caltech to develop orbital solar plants that would beam electricity to Earth below. The researchers ultimately settled on a sail-like structure that is thin and flexible compared to boxy, traditional satellites.
（本报记者白光迪、亓玉昆、刘温馨整理）。业内人士推荐体育直播作为进阶阅读
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Виктория Кондратьева (Редактор отдела «Мир»)，详情可参考PDF资料
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