由推导出的齿端和槽端面积及其圆心矩公式，首先得出轴套（侧板）内外两侧所受的力和力矩关于齿轮基本参数的函数表达式。
Based on both the area formula of gear tooth and groove and their respective center multiplying formula, the force and moment expressions of both sides of side-panels could be brought out at first.
愿以顾客为圆心、以物美价廉为半径，共同谱出线路板事业的圆满。
Willing customer as the center and radius of the inexpensive and common spectrum of a complete circuit board industry.
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