tortuosity

The tortuosity of the mountain road made the drive much longer than expected.

用法提示：名词tortuosity表示“曲折、迂回”，此处作主语，描述道路的蜿蜒程度。

Researchers measured the tortuosity of the porous material to understand how gases diffuse through it.

用法提示：名词tortuosity在此指多孔介质的“曲折度”，作动词measured的宾语。

The river's tortuosity increases as it flows across the flat plain.

用法提示：名词tortuosity表示河流的“弯曲、曲折”特性，作主语。