| 摘要 |
<p>A liquid or water retention or detention system which is made up of one (10) or a plurality of modules (23) which has a continuous perimeter wall (33) which surrounds an internal chamber (9) and there is also provided a plurality of pillars or columns (17) which extend from a floor or base (15, 9A) which support a roof (18, 6) whereby there is also provided an inlet (7) and an outlet (8) characterised in that during liquid or water flow from the inlet (7) to the outlet (8) the liquid or water covers an entire surface area of the floor or base (15, 15A) with the exception of the pillars or columns (17) and thus liquid or water flow is not restricted in any direction. 'G N- 2 /32, B3 210 PR</p> |
