perforation

过去式：

动词过去式: 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：

Sleeves can also serve as an original-packing guarantee in conjunction with a perforation feature.

套标经打孔装置打上孔后,亦可作为正品包装的标志。

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。

Two others had perforation of the coronary sinus requiring pericardiocentesis.

另2人在心包穿刺术下进行冠状窦的电击穿手术。

A perforation,as in a punched card or paper tape.

在穿孔卡片或纸带上穿孔的一种动作。

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

许多事情表现得有效但缺乏效率。

The acute Perforation has developed.

发生急性穿孔。

Colonic perforation is one of the most common and severe complications.

其中大肠穿孔是最常见，也是最严重的并发症之一。

The group passed perioperative period uneventfully after treatment, except one died of stomach perforation in thoracic cavity.

结论高龄胸部肿瘤患者围手术期处理较为复杂，应该予以重视。

The perforation in tectum is clear.

覆盖层不连续,有小穿孔。