读贵刊１９９８年１～２合期贵州省曹业辉同志的文章（简称《有》文），颇有异议，提出商榷．一、有关问题说明螺旋测微器旋转套筒边缘处有把圆周５０等分的可动刻度，固定套筒上有最小值半毫米的固定刻度，还有与筒身平行的长直线——基准线．没有零误差时，可动刻度的零... Read the articles of Comrade Cao Yihui from Guizhou Province during the 1st to 2nd period of 1998 (abbreviated as “Ye”), and there is disagreement. I. Description of the problem The spiral micrometer rotates the sleeve with a movable scale that divides the circumference by 50 at the edge of the rotating sleeve, a fixed scale with a minimum of half a millimeter on the fixed sleeve, and a long straight line parallel to the barrel. line. When there is no error, the movable scale of zero...