峡

The nucleus isthmi of lower vertebrates is an important visual center closely related to the optic tectum .

低等脊椎动物的峡核（Nucleus isthmi，NI）是与视顶盖（Optictectum，OT）密切相连的视觉核团。

Based on the principle of shading, three-dimensional reconstruction of the nucleus isthmi, the secondary visual center in the pigeon has been realized by using a microcomputer system.

中国科学院生物物理研究所，北京摘要：本文采用灰度阴影法，在Cromemco微机系统上对家鸽的次级视觉中枢——中脑峡核进行了计算机三维重建。

Three dimensional morphology of the nucleus isthmi pars magnocellularis and pars parvocellularis and their relationship were demonstrated by rotating the reconstructed NI round a spatial axis and by cutting the reconstructed NI with a computer software.

通过使重建NI绕空间轴转动，以及用软件对其剖切，展示出峡核大细胞部和小细胞部的空间构型和相互关系。

The size of the reamer was regarded as the diameter of the isthmus.

软钻的直径即为股骨峡部的直径。

The sensitivity and specificity of differential pacing in predicting isthmus conduction were 100% and 88.9% respectively.

差异性起搏对预测峡部完全阻滞的灵敏度达100%，特异度达88.9%。

The anomaly change of ICa,L may be the important mechanism of arrhythmia that atrial isthmus involved in.

L型钙电流的异常变化可能是心房峡部参与心律失常发生机制的重要因素。

At the preoperative planning stage one must make a decision on the amount of bone available above the isthmus.

在术前计划阶段，医生应当对股骨峡部以上可得到的骨量进行判断。

Sagittal reconstruction can completely display the isthmus of vertebral arch and the features of spondylolysis in detail.

矢状位重建可清晰的显示椎弓和椎弓峡部裂的形态特征。

Methods All 96 patients with nodule were operated by resection of only thyroid leave 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。

Any root that contains two root canals has the potential to contain an isthmus .

任何含有两个根管的单个牙根内均有可能存在根管峡部。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。