backbore

名词 n. 动词 v.
中文释义

英文释义

名词 n.
  1. The section between the throat and shank of the mouthpiece of a brass instrument.
    — More conical backbores give a richer tone, while more cylindrical ones give a brighter, more projected tone.
动词 v.
  1. To modify (a weapon's barrel) so as to increase the bore diameter. transitive
  2. To bore from the backside of a workpiece by using a boring tool that passes through one or more through holes, deploys a cutting edge (or receives it by manual insertion from an operator), bores a feature on the far side, retracts the cutting edge (or has it removed), and then retreats back through the hole (toward the tool's origin).

词形变化

backbores plural backbores present,singular,third-person backboring participle,present backbored participle,past backbored past

词汇关系

相关词
overbore

词源

词源 1
From back + bore.
词源 2
From back + bore.
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