換位子
Viscosity - Wikipedia, the free encyclopedia 有對夫妻結婚多年,丈夫總是忘記一些特別的日子, 結婚三十五週年那天,他們在享用早餐時 ,妻子向她先生暗示:「老伴,你知不知道,我們坐在這兩張椅子上已經整整三十五年了?」 丈夫放下報紙,望著老婆說:「妳是不是想跟我換位子?」 The viscosity of a fluid is a measure of its resistance to gradual deformation by shear stress or tensile stress. For liquids, it corresponds to the informal notion of "thickness". For example, honey has a much higher viscosity than water.[1] Viscosity is...
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