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不锈钢三轮车孤度怎么算
更新时间： 2021-03-20 09:44:57  

1、设圆的半径为r，那么圆心到弦的距离即弦心距为x-b，根据勾股定理：(A/2)^2+(x-b)^2=x^2，解得：x=(A^2+4b^2)/(8b)。

2、不锈钢三轮车与普通三轮车使用有什么区分？最主要的是用磁铁区分，铁的能吸住，不锈钢的吸不住。但常用不锈钢又分为304材质和201材质。304材质比201材质贵。但如果是三轮车的话，201材质就相当高档了。

关键词： 不锈钢 三轮车 怎么

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