查询词典 perforation

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。

Fracture of the tooth, lateral perforation of the canal, and breaking of the reamer were not found.

证实了超声根管治疗的有效性、安全性和实用性，但在处理弯曲根管方面由于其形成作用较差，故尚有一定的局限性。

We got alerted a couple of times while we were down south that HETs were on the way to bring us back up north because things were going to go hot again, but it was just rumors.

南下的途中我们不只一次得到警告说重型装备运输车将拉着我们重新北上，因为局势正在变得重新紧张起来，但这只是谣传。

It's the one where they find the ghost in the salt mine.

这一集是演他们在盐矿找到鬼