The grinding surface is also the positioning surface of the workpiece in centerless grinding. 摘要无心磨削中,工件的磨削面就是工件的定位基准面。
This fixture should be provided with a reference leveling surface, so that it can be kept level as the balance deflects. 这种装置应该有一个水平基准面,以便在天平变形时能够使之保持水平。