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2012/10/10

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Making of cleaning robot
[ Posted Wed, 10 Oct 2012 06:32:02 ]

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Aug 25, 2012. Supplement of “Otona no Kagaku (Science for adults)” magazine vol. 33, published by Gakken company, Japan. The topic of this issue is gears. http://bit.ly/Rut1OB


 

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