由棱角状的，破碎的颗粒组成的任何岩石的通常化术语。
A generalized term for any rock consisting of angular, broken particles.
角状的形式是对强烈的阳光的直接回应，因为这里常年有极端的温度。
The angular form is a direct response to the intense sun, which results in extreme temperatures for much of the year.
角状的水池草；完全水生的草本植物；有些分类中包括在眼子菜科中。
Horned pondweed: completely submerged herbs; in some classifications included in potamogetonaceae.
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