isthmus

This fact has led naturalists to believe that the Isthmus was formerly open.

使许多自然学者相信这个地蛱在以前原是开通的.

North America is connected with South America by the Isthmus of Panama.

巴拿马海峡把北美同南美连接起来.

The isthmus would be greyish brown, littered with whelk shells and punctuated by shipwrecks.

海峡可能是灰褐色的，到处散落着海螺壳，时而还会有失事船只的残骸。

The north and south of the island are linked by a narrow isthmus.

岛的北部和南部由一条狭窄的地峡相连.

The thyroid gland has a right lobe and a left lobe connected by a narrow isthmus.

位于颈部气管前,由左右两叶及中间狭窄的的峡部构成.

Institutional Development and Regional Electrical Integration of the Central American Isthmus

中美洲地峡机构发展和区域电气一体化

The ablation target site was the isthmus between tricuspid valve annulus and inferior vana cava.

位于三尖瓣环和下腔静脉口间的峡部为消融部位.

Objective To provide an anatomic data of the lumbar isthmus, and to increase the fusion rate of the graft bone for spondylolisthesis treated with posterolateral spinal fusion and Steffee plate fixation.

目的对腰椎峡部进行解剖学测量，为提高后外侧植骨融合术治疗腰椎滑脱症的融合率提供解剖学资料。

In every heart period, the max deformation scope of the aorta lies descending thoracic aortic isthmus.

在每个心动周期, 主动脉变形幅度最大处位于降主动脉峡部.

In 1881, a French organization tried to build a canal across the Isthmus.

1881年, 一个法国的组织曾尝试在巴拿马地峡建立隧道.

It was the neck of land which we call the Isthmus of Panama.

这个陆地的狭窄地带,我们称之为巴拿马地峡.

Based on the principle of binocular stereopsis, three-dimensional reconstruction of the nucleus isthmus ( NI) in the frog ( Rana nigromaculata) has been realized by using a microcomputer system.

本文根据双眼立体图对原理，利用微型计算机系统对黑斑蛙（Rana nigromaculata）中脑峡核（NI）进行了三维重建。

Methods All 96 with nodule were operated by resection of only thyroid and its isthmus.

方法总结96例甲状腺结节患者行一侧腺叶加峡部切除所采取的术式.

Anatomical study of the lumbar isthmus The Diagnosis of Dissecting Aortae by Transesophageal Echocardiography

腰椎峡部的解剖学研究经食道超声诊断主动脉夹层

Consultative Group on Economic Cooperation for the Central American Isthmus

中美洲地峡经济合作协商小组

And all of 3 cases of typical atrial flutter ( AFL) underwent isthmus ablation of right atrium and revealed bi-directional block.

3例术前有典型心房扑动（AFL）发作，行右心房峡部消融实现双向阻滞。

The Isthmus of Panama joins North and South America.

巴拿马地峡将北美和南美连接起来.

The canal isthmus comprised 62.5%, 75.0%, and 48.7% in crown third, middle third, and apical third root canals, respectively.

根管峡在根冠、根中、根尖段分别为62.5%，75.0%和48.7%，存在型、型和型，以型最多，型次之。

Unilateral lobe with isthmus resection for the solitary thyroid nodule: curative effect

扩大患侧甲状腺切除术对孤立性甲状腺结节的疗效评价

Design and experimental study of internal fixator for the reconstruction of lumbar isthmus

腰椎峡部重建内固定器的设计及应用实验

Objective : To analyze the clinical significance of modified thyroidectomy by trans-isthmus approach.

目的: 探讨经峡部径路行甲状腺手术的临床价值.

The normal upper limit of VA isthmus was 4.4 mm by 1.5 mm ( length by width ).

正常va峡部的上限值为4.4mm×1.5mm ( 长×宽 ).

Objective To discuss the value of CT Opposite Scanning Technique in Lumbar Isthmus diagnosis.

目的探讨腰椎峡部CT反向扫描技术的价值.

Objective: To analyze the clinical significance of modified thyroidectomy by trans-isthmus approach.

目的：探讨经峡部径路行甲状腺手术的临床价值。

Results Eleven of 13 cases were located ampulla of fallopian tube, 1 case was located isthmus of tubae uterinae, 1 case was located interstitial portion.

结果13例输卵管妊娠发生于壶腹部11例、峡部1例、间质部1例。

The most important ablation end point is the complete isthmus conduction block.

后峡部双向传导阻滞是保证近远期疗效的重要消融终点。

Isthmus in these two carats in the House, the west by the Andaman Sea.

克拉地峡在这两个府境内, 西濒安达曼海.

Auckland is the largest city of new zealand, on an isthmus of northwest North Island.

奥克兰是新西兰最大的城市, 位于北岛西北部地峡.

The thyroid right lobe and a left lobe connected by a narrow isthmus.

位于颈部气管前,由左右两叶及中间的峡部构成.

In which part of the world is the Isthmus located?

苏伊士地峡位于世界的哪一部分?