perforation

过去分词：

动词过去分词: perforated

更多词形：

形容词: perforable | 名词: perfora-tor | 动词过去式: perforated | 动词过去分词: perforated | 动词现在分词: perforating | 动词第三人称单数: perforates |

单词例句：

Many things perfor (effectively) but not (efficiently).

许多事情表现得有效但缺乏效率。

A separation of continuous paper forms, usually at the perforation.

通常在穿孔处对连续格式纸进行的分离。

The 2 techniques were comparable in the diagnosis of appendiceal perforation.

这两项技术在诊断盲肠穿孔方面相当。

Ingested foreign bodies also have been found to be the cause of perforation of the wall of the intestine.

吞下异物也曾被发现是小肠壁穿孔的原因。

This paper introduces principle and influence factors in technology of perforation.

摘要本文对射孔技术的原理及影响因素进行了较为详尽的阐述。

The cure rate of 364 ears in 350 cases of perforation of ear drum was 100%.

350例(364耳),中外伤性鼓膜穿孔310耳均1次治愈,治愈率100%。

The perforation in tectum is clear.

覆盖层不连续,有小穿孔。

The reason is that the edge of a burn perforation has decreased blood supply.

主要是因穿孔边缘有厉害的缺血所致。

This prevents bowel perforation.

这样可以防止肠道穿孔。