| 摘要 |
<p>The invention provides a ground cover comprising an inner frame, arranged to be filled with a ground surface material, and an outer frame, arranged to be embedded in a ground surface layer and arranged to support and laterally enclose the inner frame, wherein a gap of predetermined dimensions is provided between side walls of the inner and outer frames so that the inner frame is removably contained within the outer frame. The ground cover comprises a first seal at its top side, in a first seal material, forming a resilient closure of the gap between the side walls of the inner and outer frames.</p> |
