本文从齿轮啮合动力学出发，研究了调制边频结构的形成及其数学上的描述。
Based on gear dynamics, the formation of side-band and its mathematical description are researched in this paper.
与增加的缺损严重，能源是分配给边的齿轮啮合频率跨越供电线路的频率。
With increase in defect severity, energy is distributed to the sidebands of the gear mesh frequency across supply line frequency.
是轮转式印刷机上各圆筒两旁的金属边，在带动齿轮旁边，当圆筒加压转动时，它们互相接触，以确保带动轮的啮合。
On rotary printing presses, metal rims beside the gears on which the printing cylinder rides. The bearers make rolling contact for proper meshing of the driving gears when pressure was applied.
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