The inner cradle support is pivoted, providing required horizontal curvature.
2
它能画出运动员在竞技中的重要时刻的集中度水平曲线，通过这个曲线，能帮助他们学习如何避免分神。
It lets players plot their concentration levels at important moments in a game-during a golf swing, say-on a chart and, in so doing, helps them learn to ignore distractions.
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