1. a chisel with a blade like a trough for cutting channels or grooves. 
   用来凿管道或凹槽有像木钵一样的刃片的凿子。
2. a long chisel with a slightly bent cutting end; used for heavy prying or cleaning mortises. 
   有微倾的凿头的长凿子；用来进行重型探察或清洗印刷版穴。
3. A slanting surface or bevel on the edge of a cutting tool, such as a chisel. 
   刃角如凿子等刃具边缘上的斜面或斜角
4. any tool with a sharp cutting edge as a chisel or knife or plane or gouge. 
   像凿子、刀、刨子或圆凿有尖锐的切边的工具。
5. cut or shaped with hard blows of a heavy cutting instrument like an ax or chisel. 
   用类似于斧头或者凿子之类的重工具切开或者使之成型。

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• 1. 切錾
  cross mouthed chisel 十字头凿...cutting chisel 切錾...diamond-point chisel 菱形錾, 菱形尖凿
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