noun🔗Share孔眼，穿孔. The act of perforating or the state of being perforated."The notebook paper had perforations so you could easily tear out a clean sheet. "这本笔记本的纸张上有孔眼，这样你就可以轻松地撕下一张干净的纸了。materialstructureprocessChat with AIVocabulary GamePractice Reading
noun🔗Share孔眼, 穿孔。 Any opening in a solid object."The paper towel roll has perforations so you can easily tear off individual sheets. "这种厨房用纸卷有孔眼，所以你可以很容易地撕下单独的纸张。partstructurematerialChat with AIVocabulary GamePractice Reading
noun🔗Share穿孔，穿孔洞。 An abnormal opening in an organ, such as a rupture."The doctor found a small number of perforations in the patient's stomach lining during the endoscopy. "内窥镜检查中，医生发现病人胃壁上有一些小的穿孔洞。medicineorgananatomybodyChat with AIVocabulary GamePractice Reading
noun🔗Share孔眼，穿孔。 A series of holes punched through something in order to assist in separating parts."The notebook paper had perforations so I could easily tear out the pages without ripping them. "这本笔记本的纸张上有孔眼，所以我可以轻松地撕下页面，而不会把纸弄破。materialpartstructureChat with AIVocabulary GamePractice Reading
noun🔗Share孔眼，穿孔。 That portion of a surface that remains after an open disk is removed from it."The postage stamp sheet was easy to tear because of the tiny perforations between each stamp. "由于每张邮票之间有细小的孔眼，邮票整张很容易撕开。partmaterialstructureChat with AIVocabulary GamePractice Reading
