机床防护罩是可以谨防尘埃及切屑、硬沙粒等进入轨迹，削减硬质颗粒状的异物对滑动轨面的损伤，可以削减导轨因操作变形对加工精度的影响，坚持机床加工精度。平常生计中，防护罩首要用于维护摄像机和镜头，分为室内型和室外型。

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