sharpener
abrade; furbish; mull; pestle; polish; rubbing; skive
【计】 lap joint; lapping
【化】 abrading; grind; grinding; lapping; lapping finish; reseat
【医】 grind; tripsis; Trit.; tritura; triturate; trituration
gear; goods; implement; instrument; means; tackle; tool
【计】 utility
【经】 facility; implement; means; tool