将块体运动分解为整体旋转与内部变形。

We resolve blocks motion into entire rotation and its interior deformation.

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综上，一般方法是找出一个参数,描述运动情况的参数，然后把运动分解。

So, the general principle is really to try to find one parameter that will let usunderstand what has happened, and then decompose the motion into a sum of simpler effect.

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在流体不可压缩的假设前提下，将流体在SK型静态混合器中的螺旋形运动分解成轴向直线运动和环向旋转运动。

Under the precondition of incompressible flow, fluid spiral motion in SK static mixer tube was resolved into axial beeline motion and circumferential rotation motion.

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