遠隔地にきれいな水を提供する水ポンプとして倍増
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Tech Insider @techinsiderさんからRT
This water wheel doubles as a water pump which can provide clean water to remote areas
This water wheel doubles as a water pump which can provide clean water to remote areas pic.twitter.com/T87uSVGhox
— Insider Tech (@TechInsider) August 18, 2018
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