A device for measuring very small distances,objects,or angles,especially one based on the rotation of a finely threaded screw,as in relation to a microscope.
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- 测微计,千分尺用以测量非常小的距离,物体或角度的仪器,尤指显微镜上利用精细螺纹的螺杆的旋转进行测量的仪器。