| 摘要 |
<p>A cover unit (12) adapted to interlock with other such units having a top surface (14) capable of supporting persons. The unit (12) is formed of semi-opaque plastics material thereby providing for a required reduced amount of light to reach any plants located beneath the unit (12). A grid is provided by a plurality of recesses (18, 20) on the surface (14), the recesses (18, 20) accepting liquids thereby permitting evaporation and run-off of the liquids from the unit (12). A framework of ribs (22) is provided on the underside of each unit (12). Locating means may be provided on the ribs (22) in the form of spikes (24) or alternatively feet (224). The locating means are shaped to engage the ground beneath the unit (12) substantially without causing damage thereto. A plurality of ports (28) extend through the unit (12) enabling plants beneath the unit (12) to breathe. The ports (28) and recesses (18, 20) are of a size to be bridged by footwear.</p> |
