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2012/10/11

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Making of cleaning robot
[ Posted Thu, 11 Oct 2012 08:33:02 ]

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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/QX1h5T


 

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