Word · Frequency #25217
perforation
孔；穿孔
a hole made in something
- 1.
The act of perforating or the state of being perforated.
穿孔；被穿孔的状态。
- 2.
Any opening in a solid object.
穿孔；孔洞；开口。
- 3.
An abnormal opening in an organ, such as a rupture.
器官上的异常开口,如破裂。
- 4.
A series of holes punched through something in order to assist in separating parts.
为便于分离而打的一系列孔。
- 5.
That portion of a surface that remains after an open disk is removed from it.
曲面上移除一个开圆盘后剩余的部分。
孔眼线；易撕线；打孔；穿孔；穿孔；被穿孔的状态。；穿孔；孔洞；开口。；器官上的异常开口,如破裂。
In use
The perforation near the top of the box lets you open it without scissors.
She tore along the perforations to separate the two pages in her notebook.
Please fold the paper along the perforation before you tear off the coupon.
tear along the perforation
perforation 此处指一排小孔形成的易撕线，常用单数。
Tear along the perforation to open the package.
沿着易撕线撕开，就能打开包装。
a perforation in [sth]
在医学语境中，perforation 指器官壁上的孔洞，为可数名词。
The doctor found a small perforation in the intestinal wall.
医生在肠壁上发现了一个小穿孔。
make perforations in [sth]
表示‘打孔’的动作或结果时，perforation 常用复数，指多个孔眼。
Connections
Collocations
- bowel perforation
- 肠穿孔
- Bowel perforation requires immediate surgery.肠穿孔需要立即手术。
- perforation of the eardrum
- 鼓膜穿孔
- A perforation of the eardrum can cause hearing loss.鼓膜穿孔可能导致听力丧失。
- perforation line
- 孔眼线；易撕线
- The ticket separates neatly along the perforation line.票沿易撕线整齐撕开。
- make a perforation
- 打一个孔
- The machine makes a perforation in each sheet of paper.机器在每张纸上打一个孔。
- tiny perforations
- 细小的穿孔
- Tiny perforations in the wrapper allow the bread to breathe.包装上的细小穿孔让面包可以透气。
Synonyms
Learner notes
Memory Tip
把 perforation 拆成 per + for + ation：为了(for)方便撕开，预先打出一排小孔。
Context & Register
语域：mixed 常见场景：医学报告、产品规格说明、票券或纸张 perforation 的语体会随语境变化：在医学报告等多用于正式书面语，指器官或组织的穿孔；在票券、纸张或产品说明中则较中性，常指易撕线或孔眼。整体上以正式场合比较常见。
Pronunciation & Spelling
These words all rhyme with 'perforation' because they share the stressed vowel /eɪ/ and the final /ʃən/ in the '-ation' suffix. Be careful not to confuse 'perforation' with 'profession' /prəˈfeʃən/ or 'perfection' /pərˈfekʃən/, which look similar but sound different.
Learn the forms together
页面下方列出了常见词形变化。学习时注意它们在句子中的语法位置。
Dictionary facts from ECDICT, WIKTIONARY.