portable grinder meaning in Chinese

轻例研磨机
手提磨轮机
移动式砂轮机

Check that portable grinders are fitted with guards in good working order
检查研磨是否保护好以应工作之需。
Portable grinders should be handled with care to avoid damaging the grinding wheel
可动的研磨机小心用手持，避免损伤磨轮。
That is an air ( electric ) powered grinder ( portable grinder , angle grinder , straight grinder , drill , impact wrench , riveting hammer , hammer drill )
那是一个气（电）动砂轮机（手持砂轮机、角型砂轮、直型砂轮、钻机、冲击扳手、铆钉锤、锤钻机）。
That is an air ( electric ) powered grinder ( portable grinder , angle grinder , straight grinder , drill , impact wrench , riveting hammer , hammer drill )
那是艺术一个气（电）动砂轮机（手持砂轮机、角型砂轮、直型砂轮、钻机、冲击扳手、铆钉锤、锤钻机）。