| 摘要 |
An improved apparent surface (Astroturf like) material surrounded by a water tight enclosure with raised borders that better control and conceal any debris and dirt that is scraped off the shoes or otherwise fall onto the mat. Means are provided to direct the debris to an area where it is better concealed from view and more protected from any blowing air. The debris is less likely to be blown about by any stream of air, such as a heater fan. In one configuration the debris is substantially completely sealed.
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