perforations

基本解释

• 齿孔

同根派生

• perforations相关词

英汉例句

• Tear the sheet of stamps along the perforations.
  沿齿孔把邮票撕开。
• Grooves extend to the finished edge, but rear perforations are not visible.
  凹槽延伸到成品的优势，但后排齿孔中不可见。

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