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荷兰德尔夫特工科大学开发出一种以太阳能供电的水上“自行车”——电动游艇。该游艇长5米,由两组太阳能电池板供
Delft University of Technology, Netherlands has developed a solar-powered water bike “electric” - electric yacht. The yacht is 5 meters long and is supplied by two sets of solar panels