In fact, Arsenal were compelled to increase the area of their playing surface.
实际上，阿森纳是被迫增加球场的面积的。
When a the cue ball is in hand, the shooter may place the cue ball anywhere on the playing surface and may continue to move the cue ball until he executes a shot.
当选手犯规时，对手可将主球放置在比赛台面上的任意位置向任意方向击球，并可以在执行击球动作前继续移动主球。
However, if the goalkeeper has been removed from the playing surface when the infraction occurs, a goal shall be awarded to the non-offending team in lieu of the penalty shot.
然而，如果在违规时守门员已由比赛场地上撤离，则非犯规球队应判予得分以替代罚射。
The improved method is designed to extract the color of playing surface on the table automatically, and we filter the noise edge pixels by smoothing and iterated curve fitting.
改进算法增加了背景主颜色的自动提取，并通过平滑和循环曲线拟合的方法剔除噪音点，保留真正的边缘点。
The improved method is designed to extract the color of playing surface on the table automatically, and we filter the noise edge pixels by smoothing and iterated curve fitting.
改进算法增加了背景主颜色的自动提取，并通过平滑和循环曲线拟合的方法剔除噪音点，保留真正的边缘点。
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