锥孔

[zhuī kǒng]

• countersunk
• taper hole
• counterbore

参考释义

锥孔 [zhuī kǒng]

• -
• 短语
  锥孔滚珠轴承 ball-bearing with taper bore
  锥孔镗削 conic boring
  锥孔装药 hollow charge; shaped charge