perforation
n. 穿孔; 貫穿; 針孔; 齒孔
Perforations are small holes that are made in something, especially in paper.
Tear off the form along the perforations and send it to Sales...
沿著紙孔撕下表格,寄給銷售部。
When held to the light the small oblong leaves are seen to possess tiny perforations.
迎著光看時,就會發現橢圓形小葉子上有微小的孔眼。
1. a line of small holes for tearing at a particular place
2. a hole made in something;
3. the act of punching a hole (especially a row of holes as for ease of separation)
Only a few cases of colon perforation during percutaneous nephrolithotomy ( PCNL ) have been reported.
摘要目前只有少數幾例的文獻報告關於經皮腎造?I取石術所造成的大腸穿刺傷.
Methods A total of 76 patients with ulcer perforation underwent laparoscopic repair peptic ulcer perforation.
方法採用腹腔鏡下縫合修補潰瘍穿孔76例.
A new perforation completion technology is adopted recently in Bohai Offshore Oil & Gas Field.
介紹了 渤海灣 海上油氣田最近採用的一種射孔新工藝.
Objective : To approach the etiological factor, diagnosis and treatment of acute nontraumatic colonic perforation.
目的: 探討急性非外傷性結腸穿孔的病因 、 診斷及治療.
Complications of gastric ulcers ( either benign or malignant ) include pain, bleeding, perforation, and obstruction.
胃潰瘍的併發症 ( 良性或者惡性 ) 有疼痛, 出血, 穿孔和梗阻.