但是，利用一种油性液体和水，以及在通道的一面覆盖上一层疏水物质，另一面覆盖上吸水物质，既可避免这一情况。

However, by using an oily liquid and an aqueous one, and by covering one side of the channel with a substance that repels water and the other side with one that attracts water, this can be avoided.

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一般情况下，超疏水表面可以通过两种方法来制备：在疏水性表面构建粗糙结构或者在粗糙表面修饰低表面能物质。

One is to create a rough structure on a hydrophobic surface, and the other is to modify a rough surface by materials with low surface free energy.

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这种物质是异常疏水的，因此在水中出现某些独特的性质。

The substance is extremely hydrophobic and therefore exhibits some unique properties in water.

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