The surface roughness directly influences the conformity, wear resistance, corrosion resistance, working accuracy of the machine, and the reliability of the instrument and its service life.
表面粗糙度与机械零件的配合性质、耐磨性、工作精度、抗腐蚀性有着密切的关系，它影响到机器或仪器的可靠性和使用寿命。
The surface roughness directly influences the conformity, wear resistance, corrosion resistance, working accuracy of the machine, and the reliability of the instrument and its service life.
表面粗糙度与机械零件的配合性质、耐磨性、工作精度、抗腐蚀性有着密切的关系，它影响到机器或仪器的可靠性和使用寿命。
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