The difference is that to make water to roll-off a Teflon coated material, you need to tilt the surface to nearly a 70-degree Angle before the water begins to slide off.

不同点在于，要使水滴从特氟龙涂层表面滚落，需要在水滴滚落之前将这个表面倾斜到70度。

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The difference is that to make water to roll-off a Teflon coated material, you need to tilt the surface to nearly a 70-degree Angle before the water begins to slide off.

不同点在于，要使水滴从特氟龙涂层表面滚落，需要在水滴滚落之前将这个表面倾斜到70度。

youdao