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平面度是长度计量中的一个重要参数,也是机械零件形状误差的一个主要参数。平面度计量器具广泛应用于光学、机械制造业。一、平面度计量基准和计量标准
Flatness is an important parameter in the length measurement and also a major parameter of the shape error of mechanical parts. Flatness measuring instruments are widely used in optical, mechanical manufacturing. First, the level of measurement standards and measurement standards