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在测量小孔的直径时,如果没有合适的小圆器,而且又不能用普通内径千分尺来测量(尺进不去)时,则可以用外径千分尺来测量。测量的方法如附图。将两个钢制斜块插在孔中,并将斜块调整得和工件孔
When measuring the diameter of a hole, it can be measured with an outside diameter micrometer if there is no suitable tip and can not be measured with a normal ID micrometer. The measurement method is shown in the attached drawings. Insert two steel slides into the hole and adjust the ramp to the workpiece hole