For a long time, there are no determinate limit between roughness and waviness of engineering surfaces, but their effects on the surface performance are different entirely.
工程表面结构的粗糙度和波纹度之间一直没有明确的界限，而它们的产生原因及对零件表面性能的影响却是不同的。
For a long time, there are no determinate limit between roughness and waviness of engineering surfaces, but their effects on the surface performance are different entirely.
工程表面结构的粗糙度和波纹度之间一直没有明确的界限，而它们的产生原因及对零件表面性能的影响却是不同的。
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