sharpening of cutting tools 刃具研磨
Tools re-sharpening management 刀具修磨管理
Often Grandfather joined me in the basement, repairing homemade wooden rakes or sharpening tools.
外公常到地下室陪我，他在一边修理自制木耙，磨磨工具。
It found that this kind of wheel has high efficient for sharpening tools. Using this wheel can avoid the tool surface crack due to grinding and reduced the dust in shop.
通过研究发现，浸渗砂轮在刀具刃磨方面是一种非常有效的工具，对于防止刀具表面磨削烧伤和减少车间粉尘污染有其特殊的使用价值。
Bach" are interesting tools for sharpening listening and concentration skills.
比如，美国当代作曲家为强化倾听与专注技能的有趣工具。
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