The kinematics characteristic of a pressslide can be changed obviously by the ellipse gears and crank gear in series.
具有变速传动特性的椭圆齿轮机构串联曲柄滑块机构能够明显改变传统压力机滑块的运动特性。
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During long sets, it's important that the swimmer takes a moment, while swimming, to explore how to discover a slide, or flying of the hands during the extension, rather than a press.