内径

基于线阵CCD的火炮身管内径测量技术

Measurement Technology of Barrel Bore Size Based on Linear Matrix CCD

内径尺寸：轴承内圈的内孔直径，安装于轴上。

BORE SIZE : The inner diameter of a cone , which accommodates a shaft .

肺心病人肺型P波与主肺动脉内径变化的研究

Changes of Pulmonary P-wave and Main Pulmonary Artery Diameter in Patients With Pulmonary Heart Disease

ETB受体激活对猪冠状动脉阻力血管内径的影响

Endothelin-B receptor stimulation in porcine coronary resistance arteries

目的应用高分辨力超声测量反应性充血前后肱动脉内径的百分变化率，评价维生素C静脉输注对原发性高血压病患者肱动脉内皮功能的影响。

Objective To evaluate the effect of intravenous vitamin C on brachial arterial endothelial function in essential hypertension patients .

方法：以30例标本制成支气管树和13例CT影像观测叶、段支气管内径、段支气管与叶支气管的夹角。

Methods : The angles between segmental bronchi and lobar bronchi and the interior diameter of them were observed on 30 bronchial trees and 13 CT images .

测量支气管动脉主干内径和肺癌病灶、转移淋巴结同一层面增强前后CT值。对各组左、右支气管动脉显示率进行X~2检验，然后行X~2分割两两比较各组间差异；

Measure the inner diameter of bronchial artery and the CT value of the same foci of lung cancer and metastatic lymph node before and after enhancement .

AF组f波振幅与心房内径和容积无相关。

The f wave amplitude in AF group was not correlated to the diameter or volume of both atrium .

直动脉的长度、内径及密度（支cm）均存在解剖部位差异性（P<0.05）.方法之间无差异性。

There were anatomic differences in length , internal diameter and density of the vasa recta ( P < 0 . 05 ) .

结果表明，正常人左房内径数值为33.0±3.5（范围20.8～40.3）mm。

The results showed that the inside diameter of left atrium was 33.0 ± 3.5 mm ( range : 220.8 ~ 40.3 mm ) .

2采用超低温处理去除Wistar大鼠颈总动脉（内径约1mm）的内皮细胞。

Wistar rat artery was treated by super low temperature .

超声心动图测量的左心房、心室的内径和EF值。结果39例患者心房电极植入中心房处于房颤状态。

Left atrial diameter , left ventricular diameter and EF in the operation were measured .

仿真的结果表明，金属线厚度对电感Q值的影响在很大程度上取决于电感内径的大小。

It is shown that the metal thickness effect on the Q-factor depends on the diameter of the innermost turn in a planar spiral inductor .

进口旋涡流量计的内径与中国标准（GB）管道内径不符引起计量误差。

The errors caused by the difference between the importation vortical flow meter inside diameter and the GB tube inside diameter .

室温下制备的Ni-P纳米管的内径均一，且不受沉积时间的限制。

The inner diameter of Ni-P nanotubes prepared at room temperature is uniform and is independent of depositing time .

胰尾动脉大多发自下叶支，起始处内径为1.14（1.12-1.22）mm。

The caudal pancreatic arteries originated from inferior lobe branches , and their originating internal diameter were 1 . 14 ( 1 . 12-1 . 22 ) mm .

砂轮轴轴心线与工件中心线不平行对轴承内径V（dmp）的影响

Influence of . Unparallel Between Axes of Grinding Wheel and Workpiece on V_ ( dmp ) of Bearing Bore

目的：以前瞻性方式研究对比胆囊颈管结石（n＝30）与胆囊体部结石（n＝50）对胆总管直径的影响。超声观察与分析胆总管内径在胆囊切除术前后的变化

Puppose : This study was aimed at the effect of gallstone on diameter of common bile duct . Ultrasound Observation and Analysis of the Diameter of Common Bile Duct Before and After Cholecystectomy

肝总管内径1～2mm。

The diameter of common hepatic duct is 1 ~ 2mm .

本文磁共振成像（MRI）测量50例正常胸主动脉不同部位的内径，并进行性别、年龄分组比较，得出一组胸主动脉内径MRI正常值。

The diameters at different sites of the thoracic aorta of 50 normal subjects were measured by MRI , and the results were compared between different sex and age groups .

结果：门脉高压组较正常组腹壁下静脉内径明显增宽，腹壁下动脉RI减低。

Results : The diameter of inferior epigastric vein was found obviously wider , and RI in inferior epigastric artery decreased .

应用超声心动图诊断左室肥厚（LVH）及左房内径（LAD）。

Left atrium diameter ( LAD ) and left ventricle hypertrophy ( LVH ) were determined by echocardiography .

结果：彩色多普勒超声检出交通静脉扩张的数目、内径及血流速度与患者临床表现分级呈正相关，相关系数分别为0.48、0.55、0.51，P值均<0.05。

Results : There were positive relationships between PVs ' number , diameter or blood flow velocity and the clinical stages , with a relationship index of 0.48 , 0.55 and 0.51 , respectively ( P < 0.05 ) .

本文介绍了内径达20毫米的活塞圆筒式高压静水压缩试验装置，该装置可在0～4500兆帕压力范围内进行P-V关系试验；

A new , cylinder-piston high pressure hydrostatic testing equipment was briefly introduced .

1mm内径涤纶小血管桥接大鼠颈总动脉的实验研究

Small diameter Vascular Prosthesis for Bridging Carotid Artery

结论：胸主动脉内径扩大、IMT增厚是高血压、动脉粥样硬化的一种血管重构现象；

Conclusions : Increased aortic diameter and IMT are phenomena of vascular remodeling in patients with hypertension and atherosclerosis .

PBMV中根据身高、体重和二尖瓣环内径选择球囊直径对手术疗效的影响

Selecting balloon diameter by height , weight and mitral anulus diameter of patients during PBMV

治疗前与治疗后门静脉内径、脾厚度有所改善，与治疗后第1年比较无显著性差异（P0.01），治疗第2年后开始有显著差异（P0.01）。

The portal vein and the splenic thickness were not significant difference in statistics between the before treating and after treating in the first year ( P0.01 ) .

对胸主动脉内径、内膜－中层厚度（IMT）、僵硬度（β）和粥样斑块进行了评价。

Measurements of aortic diameter 、 intemal medial thickness ( IMT )、 stiffness index (β) and atherosclerotic plaque were made .

方法100例（男74例，女26例）患者，年龄（58.10±1.78）岁，行三维螺旋CT扫描并图像重建，观察CS及其分支的走行，内径大小及成角等解剖关系。

Methods One hundred patients [ 74 men , 26 women , average age ( 58.10 ± 1.78 ) ] were scanned by MSCT , 3D images reconstructed and the vessels courses evaluated .