查询词典 perforation

Object To explore the method for measuring area of traumatic perforation of tympanic memberane through analysis of 41 cases.

目的探索外伤性鼓膜穿孔面积大小的测量方法并分析41例病例。

If the perforation that it can only do a corneal transplant.

如果穿孔那也就只能做角膜移植了。

Perforation of both the cement lining and well casing is accomplished by explosive perforator devices lowered into the well.

水泥衬砌和套管两者的穿孔是通过下到井内的爆炸射孔装置完成的。

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。

The doctor had to perform an emergency operation on him to confirm that it was peptic ulceration combined with gastric perforation.

医师为他紧急开刀，才证实了是消化性溃疡合并胃穿孔。

RESULTS: Of 233 patients, 217 (93%) never required surgical palliation of their primary tumor. Sixteen patients (7%) required emergent surgery for primary tumor obstruction or perforation, 10 patients (4%) required nonoperative intervention, and 213 (89%) never required any direct symptomatic management for their intact primary tumor.

结果：在这233名患者中，217(93%)名患者由始至终不需行原发性肿瘤姑息手术。16名（7％）患者由于原发性肿瘤阻塞或穿孔需行急诊手术，10名（4％）患者需行非手术治疗，213名（89％）患者从来不需对完整的原发性肿瘤采取任何对症治疗措施。

A perforation,as in a punch ed card or paper tape.

在穿孔卡片或纸带上穿孔的一种动作。

Any tape punch that automatically converts coded electrical signals into perforation in tape .

自动地将编码电信号变换为纸带上的穿孔的任何纸带穿孔机。

On 70 mm film, a small punched hole placed between every fifth perforation.

在70mm胶片上，使每五个齿孔之间有一个小的打孔。

A punched tape wherein only partial perforation is completed and the chad remains attached to the tape.

一种穿孔带，打孔时紧紧完成部分穿孔，而孔屑仍附着在打孔机上。

Chrysanthemum of 10 thousand birthday is lax to edaphic requirement, with the arenaceous qualitative loam with fecund, good drainage had better.

万寿菊对土壤要求不严，以肥沃。排水良好的砂质壤土为好。

He unstepped the mast and furled the sail and tied it.

他拔下桅杆，把帆卷起，系住。