perforation中文什么意思

[ pɜ:fə'reiʃ(ə)n ]发音:

用"perforation"造句

冰穴砾阜

冲孔

初始喷发

穿孔两个导管节互相连接处，在其上下壁上会全部或部分消失而形成一开口，此种现象称之

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gastric perforation; stomach perforation: 胃穿孔
abraded perforation: 磨蚀的射孔眼
appendiceal perforation: 阑尾穿孔

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例句与用法

The dangerous type chronic otitis media occurs with pars flaccida and marginal perforations .
慢性中耳炎的危险型可出现鼓膜松弛部的穿孔和鼓膜边缘性穿孔。
Involvement of the small bowel by primary or metastic neoplasms may occasionally be followed by perforation .
原发性或转移性肿瘤累及小肠也偶可继发穿孔。
About 15 to 20 percent of patients who require treatment for perforation or bleeding will not have an antecedent history of ulcer pain .
为出血或穿孔而需治疗的病人中，约1520以往无溃疡疼痛的病史。
Graphic technology - perforations for printing plates
图形技术.印刷平板打孔
Screen plants - codification for designating perforations
筛板筛孔的标记方法

英文释义

名词

the act of punching a hole (especially a row of holes as for ease of separation)
a line of small holes for tearing at a particular place
a hole made in something; "a perforation of the eardrum"

百科释义

A perforation is a small hole in a thin material or web. There is usually more than one perforation in an organized fashion, where all of the holes are called a perforation.

详细百科解释