目的：探讨周期运动过程中桡动脉横切面轴心到皮肤距离的动态变化与脉位的关系。
Objective: to study the relationship between pulse position and dynamic variation of distance from transverse section centroid of radial artery to skin during a cardiac cycle.
在他们的模型中，半径是动物中心到其皮肤的距离。
In their model, the radius is the distance from the center of the animal to its skin.
在他们的模型中，半径是从动物中(重)心到其皮肤的距离。
In their model, the radius is the distance from the centre of the animal to its skin.
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