1. In addition, the system can be used to carry out leading perforation test. 在检测雷管延期时间的同时，还能够进行铅板穿孔试验。
2. Liver abscess formation is a rare complication of gall bladder perforation with cholecystohepatic communication. 肝脓肿的形成是胆囊穿孔伴发肝胆囊交通的罕见并发症。
3. Methods: To make a review of the nursing of 8 patients of morioplasty of perforation of duodenal ulcer under laparoscope. 方法：对8例腹腔镜下十二指肠溃疡穿孔修补术患者的护理进行回顾性总结。
英英解释
n.
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)
