One way - the most obvious - is by giving shoppers information they can't get otherwise, such as how much the object weighs, how soft or hard it is, how rough or smooth it feels.
第一种情况是最明显的，就是顾客只有通过触摸该商品才能了解它的重量、柔软度和舒适度。
Elphants have their own way to tell the shape of an object and whether it is rough or smooth.
对于判断一个物体的形状以及它是粗糙的还是光滑的，大象有自己的方式。
Thecoherent scattering of Gaussian beam by arbitrarily shaped convex dielectric object with rough surface is investigated.
研究了任意形状凸粗糙物体对高斯光束的相干散射特性。
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