For form grinding, precision grinding of cutters, measuring tools, instrument parts, thread grinding and fine surface finish grinding.
适用于成型磨削，刀具，量具，螺纹工件、仪表零件的精密磨削，及其它各种高光洁度的表面加工。
This paper is concerned with the principle of a non - contact optical instrument for measuring the surface roughness of a magnetic disk with an opto-heterodyne interferometer.
根据外差干涉计量术的原理，研制了非接触式的光外差干涉磁盘表面粗糙度测量仪。
This paper introduces the structure, principle and circuits of a novel practical Instrument for measuring the surface temperature of revolving drum.
介绍了一种新型、实用的旋转滚筒表面温度测试仪的结构、原理和测量电路。
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