圆锥形内孔 [机] tapered bore

圆锥形孔车削 taper turning

圆锥形孔磨削 taper grinding

锥形入口孔板 conical entrance orifice plate

圆锥形孔镗削 taper boring

锥形孔 taper hole ; conical orifice ; Countersinking ; bell mouth

锥形孔规 taped hole gauge

锥形孔盘式透度计 tapered-hole disk penetrometer

圆锥形孔 round taper hole ; cone shaped hole

锥形销孔铰刀 taper pin reamer