圆弧底形态属于一种盘整形态，多出现在价格底部区域，是极弱势行情的典型特征。其形态表现在K线图中宛如锅底状。
结果表明：圆弧底U应为理论最佳断面；
The result showed:the arc bottom U should be the best section in theories;
本文根据赫兹应力理论，提出一种凹圆弧底从动件的盘形凸轮机构。
In this paper, a new type of disk CAM mechanisms whose follower has concave circle arc bottom is developed.
传统的运动鞋是要让人站立平稳，而这种圆弧底鞋子则是刻意要让人站立不稳。
Unlike traditional athletic shoes that are built to be stable, rocker-sole shoes are deliberately unstable.
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