為什麽用手指快速“梳頭”比不上木梳呢？為什麽必須木梳呢？既然靠的是物理摩擦效應，塑料梳子應該也一樣呀？比較想不懂。。。

來源: tryonetry 於 2017-02-28 11:17:24 [舊帖] [給我悄悄話] 本文已被閱讀：次

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