The relationships among perforation diameter , density, phase and casing strength are clarified.

It is known that ear drum perforation resulting from burns resists closure.

摘要我们都知道,经过烧烫伤而穿孔的鼓膜,不易愈合.

Major complications for intestinal bleeding, intestinal perforation.

主要并发症为肠出血 、 肠穿孔.

Results Success rate of operation reached 100 percents, no uterus perforation or other complications happened.

结果118例困难宫腔手术,成功率100%, 未出现子宫穿孔及其它并发症.

The experimental results indicate that the ultimate load decreases with increase of perforation size.

根据不同开孔尺寸试件的试验结果可知,开孔构件的极限承载力随着开孔高度、宽度的增大而下降.

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.

Tear off the form along the perforations and send it to Sales...

沿着纸孔撕下表格，寄给销售部。

Methods A total of 76 patients with ulcer perforation underwent laparoscopic repair peptic ulcer perforation.

方法采用腹腔镜下缝合修补溃疡穿孔76例.

the perforations in a sheet of stamps

一版邮票上的齿孔

The result shows that the directional perforation formslong and flat fractures easier than the spiral perforation.

研究结果对疏松砂岩储层压裂充填防砂设计具有较大的指导意义.

Excessive pressure can lead to perforation of the stomach wall.

过大的压力会导致胃壁穿孔。

Complications with operative hysteroscopy include absorption of fluid, infection, bleeding, and uterine perforation.

手术宫腔镜的合并症包括液体吸收, 感染, 出血和子宫穿孔.

Heavy cloth drapes, after continued use, also must be inspected for perforations before they are sterilized.

传统的棉织大单, 反复使用后, 每次消毒前需仔细检查是否有破损.

Tear off the form along the perforations and send it to Sales.

沿着纸孔撕下表格，寄给销售部。

The rear perforations are visible on the cut edge.

后方齿孔都是看得见,对切缘.

This article briefly describes a new perforating technique that will result in clean , open perforations.

本文简要地介绍了一种对产层不会造成伤害的新型射孔技术.

The idea that can develop continuously should perforative cooperate at area from beginning to end.

可持续发展的思想应贯穿于区域合作的始终.

Anling from northwest to southeast perforative whole town . Belong to.

小兴安岭自西北向东南贯穿全市.

Perforation effect is seriously affected by the clearance between perforator and casing.

射孔枪与套管之间的间隙过大会影响射孔效果,太小容易出现工程事故.

Objective : To introduce the anatomical study and clinical experience of lateral retromalleolar perforator flap.

目的: 介绍外踝后穿支皮瓣的血管解剖基础与初步临床应用经验.

Perforator: Key board which produces prunched paper tape.

打孔机: 把纸带打孔的键盘.