Portable grinding tools need to be equipped with safety guards to protect workers not only from the moving wheel surface, but also from flying fragments in case of breakage.

便携式研磨工具应装有安全防护装置，这样不仅可防止工人接触运转的砂轮表面，而且他们也不会被破裂时飞溅的碎片击中。

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Portable grinding tools need to be equipped with safety guards to protect workers not only from the moving wheel surface, but also from flying fragments in case of breakage.

便携式研磨工具应装有安全防护装置，这样不仅可防止工人接触运转的砂轮表面，而且他们也不会被破裂时飞溅的碎片击中。

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