不烧油的潜艇

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在海上游玩,除了游艇之外,更吸引人的是可以深入海下的潜艇。十多年前,世界上就有不少研究人员开始太阳能潜艇的研究,不过之前研究最多的是无人潜艇,这种潜艇主要用于科学探险。最近,瑞士研究人员成功研制出世界上第一艘太阳能载人潜艇,可以让人们非常环保地游览水下世界。
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