它的特征是窦房结功能障碍并常伴有房室结疾病和束支传导阻滞。
It is characterized by sinoatrial node dysfunction and often includes atrioventricular node disease and bundle branch block.
用测量数据得到了笔形束模型的特征参数。
Its characteristic parameters have been deduced from the measured data.
目的观察研究腋神经中支配三角肌的功能束（组）于四边孔平面在神经干中的分布规律及组织学特征。
Objective To observe and study the distribution and histological feature of the fascicular groups to deltoid muscle in axillary nerve at the level of quadrilateral zone.
论文对等离子束表面冶金过程中熔池的区域性、熔池中熔体的流动特征、化学冶金过程以及温度场进行了详细研究。
The regional metallurgical process, flowing characteristics of melt, the chemical metallurgical process and temperature field of the molten bath have been analyzed in full.
文中利用该装置研究了轴针式喷嘴的喷油过程，探讨了喷嘴油束形成的特征。
The apparatus has been used in investigating the spray formation of a pintle nozzle.
提出一种聚束式合成孔径雷达图像特征提取的有效算法。
An effective algorithm of feature extraction for spotlight synthetic aperture radar images is presented.
分别论述了高能束流加工、电火花加工、电解加工，以及物料切蚀加工的概念、特征与应用状况。
The concept , characteristics and application of high energy beam machining , electrical discharge machining , electrochemical machining and material abscission machining separately discuss.
分别论述了高能束流加工、电火花加工、电解加工，以及物料切蚀加工的概念、特征与应用状况。
The concept, characteristics and application of high energy beam machining, electrical discharge machining, electrochemical machining and material abscission machining separately discuss.
详细分析了等离子束表面冶金熔池的凝固机理、凝固特征及对凝固组织的影响。
The freezing mechanics, characteristic and influence on structure of plasma-jet surface metallurgy have been analyzed in full.
分析了探头调整时脉冲回波信号的变化特点，在实验的基础上构建了声束入射角与表面波时域特征值间的关系模型。
Using the characteristics of pulse echo singal during the probe adjustment, a relation model between angle of incidence and time-domain eigenvalue of reflect wave signals was proposed.
这些注入机的特征是硬件和设计原理通用，并包含离子束注入角控制、剂量测定和终端站设计。
These implanters feature common hardware and design principles including beam incidence Angle control, dosimetry, and end station design.
不同种属动物房室交界区细胞束的形态特征及其在房室交界区立体结构中的位置有差异；
There were species difference in the cell shape of those distinct cellular bundles and their position in the architecture of atrioventricular junction.
目的研究左心室条束的二维超声心动图特征和左心室条束与心脏杂音及室性早搏的关系。
Objective To study the relations between left ventricular band and cardiac murmur or premature ventricular contraction and echocardiographic features.
观察表明中间型上皮的基本特征是细胞胞质内含有发育良好的管泡状系统和较丰富的张力微丝（束）。
The intermediate epithelial cells were characterized by their abundant cytoplasmic tonofilaments and well developed tubulo-vesicular system.
利用电子束离子源（EBIS）或者电子束离子陷阱（EBIT）产生的慢速高电荷态重离子束轰击金属靶面，离子束与靶面作用并复合辐射特征X射线；
The electron beam ion trap(EBIT) and the electron ion source(EBIS) are new instruments for the study of X-ray produced by very highly-charged ions when they interact with free electrons.
通过金相技术、力学性能试验和SEM技术研究了6061-T6铝合金真空电子束焊接接头的金相组织、力学性能和断口形貌特征。
The metallurgical structures, mechanical properties and fractographs of EB welded 6061-T6 aluminum alloy joint were studied by means of metallography, mechanical test and SEM technology.
为有效提取图像中结构光线性特征以确定焊缝位置，引入了束波变换。
The Beamlet transform was introduced to detect the line segment characteristic of the structured light in the image to identify the position of the weld seam effectively.
目的探讨左心室纤维肌束及其特征与早期复极综合征的关系。
Objective To investigate the relationship between early repolarization syndrome (ERS) and left ventricular fibromuscular bands(LVFB).
目标：多时相室间隔运动和间隔-侧壁心尖左心室(LV)运动为左束支传导阻滞的心电图特征。
Objective: Multiphasic septal motion and septal to lateral apical left ventricular (LV) motion are echocardiographic characteristics of left bundle branch block.
目的：探讨原发性肝癌的电子束ct增强特征。
Purpose: to analyze the hepatic contrast enhanced characteristics in patients with hepatocellular carcinoma by Electronic beam ct.
透射电子显微镜是用穿过样品的透射电子束产生样品组织形貌像的显微镜，在透射电子显微镜上，可以在高倍下研究样品的内部结构特征。
A microscope that produces an image by using electron beams that are transmitted (pass through) the specimen. Examination of internal features at high magnifications is possible.
剪切带的出现和由此引起微裂缝的发生是PET纤维拉伸形变的主要特征，而个别大分子束的断裂形成裂缝的广泛出现则是PAN纤维的主要特征。
It is the characteristic of the deformation of PET fibers that the shear bands occur and lead to the crack initiation during the process of the deformation.
回顾了前人利用电子束焊接过程产生的特有现象作为研究瞬态过程的依据，揭示了一些焊接瞬态特征以及提出的各种有关电子束深穿透焊接的物理模型。
Some special dynamic characteristics were disclosed using some special phenomena in the EBW processing, and at the same time, the physical models of the EB deep penetration were put forward.
回顾了前人利用电子束焊接过程产生的特有现象作为研究瞬态过程的依据，揭示了一些焊接瞬态特征以及提出的各种有关电子束深穿透焊接的物理模型。
Some special dynamic characteristics were disclosed using some special phenomena in the EBW processing, and at the same time, the physical models of the EB deep penetration were put forward.
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