| 摘要 |
The ground covering structure comprises a porous and resilient underlayer made of synthetic material forming open meshes or alveoles and which is anchored to the ground, and water-pervious vault forming elements having holes or slots through which water may flow, also made of synthetic material, with the formed vaults having a concavity turned towards the ground. The elements include means for their connection with the underlayer on which they are applied and having a top provided with shags or filaments having free ends, with the free ends of said shags or filaments all ending substantially in the same plane.
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