When the material particles are bidirectional rotation, they're also during circular vibration, and at the same time they're with bidirectional impact.
物料的每一个质点在每一个瞬间都在双向旋转的同时，还进行圆周式的振动，并且在上、下两端受到双向的撞击。
The vertical vibration of a rigld circular plate on a poroelastic half space is studied by using the technique of integral transform and integral equation.
用积分变换和积分方程研究多孔饱和半空间上刚性圆板的垂直振动问题。
In this paper, discussed the vibration of circular parts machining, proposed out the best trace of CNC powerful turning and the method of limited depth.
阐述了环形件数控强力车削加工中的颤振问题，提出了数控强力车削环形件避免发生颤振的最佳工艺路线和极限切深。
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