| 摘要 |
A synthetic grass sport surface ( 10 ) suited for use in a baseball field includes an infill layer ( 16 ) of particulate material evenly spread among rows of ribbons ( 14 ) extending upwardly from a backing mat ( 12 ). The infill layer ( 16 ) includes a top covering sub-layer ( 26 ) of non-marking material, such as recycled rubber used in the manufacture of soles for running shoes. A checkered pattern of alternating color tones is formed on the synthetic grass surface ( 16 ) for improving the natural appearance thereof. The synthetic grass surface also includes a synthetic grass warning track ( 34 ) having different tangible properties to alert a player stepping thereon that he is approaching an obstacle.
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