圆刃端铣刀 STR ; GR ; FR ; HR
双面刃端铣刀 two-lip end milling cutter ; two lip end mill
端面铣刀刃磨机 face-milling cutter grinder
双刃端铣刀 two-lipped end mill
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一种电动卷笔器，玩具电动机经齿轮减速装置与一中部为锥形，两端为空心圆筒的多刀刃卷笔刀筒机械连接。小砂轮套装在玩具电动机轴上。
An electric pencil sharpener USES a toy motor as power and is composed of conic casing with tubular ends, multi-edge cutter for wooden part and a small abrasive wheel for lead core.
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