这些商店拥有一个合法的苹果专营店的所有特征，有光滑的硬木桌子和简约楼梯 。

The stores have all the hallmarks of a legitimate Apple outlet, completing with glossy hardwood tables and minimalist staircases.

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桦树有光滑的皮和细长的枝。

The birch has smooth bark and slender branches.

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花粉的表面纹饰为瘤状纹饰，有光滑型、粗糙型和中间型；

The warty ornamentation pollen has the three kinds, Smooth type, rough type and I-type.

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You could take a continuous path, where you have an infinite equilibrium points in between the two, a smooth path, whereyoudrop pressureand temperature simultaneosly in little increments.

你可以选择光滑的连续路径，在初末态间有,无数个平衡态的点，压强和温度同时一点,一点地下降。

麻省理工公开课 - 热力学与动力学课程节选