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介绍了均布孔所在圆周直径的简易测量方法 :测量出相邻两孔中心距L ,再乘以一个系数K ,即为孔所在圆周的直径D =L·K。
A simple method for measuring the diameter of a circle where uniform holes are located is described. The distance L between two adjacent holes is measured and multiplied by a factor K, which is the diameter of the circle where the hole is located, D = L · K.