光学平直仪 meaning in English
optical flatne gauge
optical flatness gauge
Examples
- Use : in coordination with the leveling instrument , optical flatness measuring instrument and electronic leveling instrument to test the flatness of plate , leveling ruler , machine tool working platform , guides and precision workpiece
用途：用途：配合水平仪、光学平直仪、电子水平仪用来检测平板、平尺、机床工作台、导轨和精密工件的平面度。