perforation
柯林斯词典
1. N-COUNT Perforations are small holes that are made in something, especially in paper. 小孔[usu pl]
Tear off the form along the perforations and send it to Sales. 沿着打的孔撕下表格，寄给销售部。
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perforation /ˌpɜːfəˈreɪʃən/ (perforations)
剑桥词典
- [ 可数名词：有复数形式的名词 ]
a hole in something
孔
A tea bag is full of tiny perforations. 茶包上满是小孔。
[ 可数名词：有复数形式的名词 or 不可数或单数名词：没有复数形式的名词 ] medical specialized
a hole that goes all the way through a membrane or tissue or the act of making a hole like this
穿透膜（或组织的）孔；在膜（或组织）上穿的孔
One possible complication of colonoscopy is a perforation through the bowel wall that could require surgery . 结肠镜检查的一个可能的并发症是大肠穿孔，必须靠手术解决。 返回 perforation