[理工] 動力學
http://ppt.cc/sWZv
算到最後有點不解
答案是寫 200Wa=400Wb
不清楚為何是用400呢
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推
02/20 13:54, , 1F
02/20 13:54, 1F
→
02/20 13:57, , 2F
02/20 13:57, 2F
推
02/22 17:57, , 3F
02/22 17:57, 3F
→
02/22 17:58, , 4F
02/22 17:58, 4F
→
02/22 17:59, , 5F
02/22 17:59, 5F
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