踏動能轉為電能的健身單車1小時,能產約幾多 - 健身
By Sierra Rose
at 2011-04-09T00:00
at 2011-04-09T00:00
Table of Contents
踏動能轉為電能的健身單車1小時,能產約幾多電出來?夠供電腦上網用電嗎?
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健身
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By Rebecca
at 2011-04-12T22:35
at 2011-04-12T22:35
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