perforation

名词 n.
中文释义
英 /ˌpəːfəˈreɪʃən/    美 /ˌpɚfəˈreɪʃən/

英文释义

名词 n.
  1. The act of perforating or the state of being perforated. countable,uncountable
  2. Any opening in a solid object. countable,uncountable
  3. An abnormal opening in an organ, such as a rupture. countable,uncountable
  4. A series of holes punched through something in order to assist in separating parts. countable,uncountable
  5. That portion of a surface that remains after an open disk is removed from it. countable,uncountable

词形变化

perforations plural

词汇关系

衍生词
imperforation microperforation misperforation multiperforation nanoperforation perforation gauge perforation plate reperforation
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