cover the outside upper region of the gloves如何理解? leather gloves or welding gauntlets to aid grip and protect the hands from metal fragments and sparks. when standard leather gloves are worn, ensure that the cuffs cover the outside upper region of the gloves such that sparks cannot roll down inside the glove. 使用皮手套或者焊接专用手套在抓握金属碎片或着火物体时保护双手。佩戴标准皮手套时,确保袖口覆盖皮手套上部,以避免火星掉入手套查看更多