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Ball for e.g. football or basketball, has surface with light reflective particles to allow play in poor light
Ball for e.g. football or basketball, has surface with light reflective particles to allow play in poor light
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机译:球例如足球或篮球,其表面带有反光颗粒,可以在光线不足的情况下比赛
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摘要
The surface (2) of the ball (1) is provided with small light reflective particles (3). These particles can be embedded in or applied to the surface, preferably in the form of a coating or using adhesive. The particles have a diameter of less than 1 mm.
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