舒张

We study longitudinal motion characteristics during isovolumic contraction , ejection , isovolumic relaxation , early relaxation , atrial systole phases in left ventricular total and regional myocardium of myocardial infarction patients with three vessels lesions by Quantitative Tissue Velocity Imaging , assess systolic and diastolic function in left ventricular regional myocardium, discuss postsystolic shortening in isovolumic relaxation phase and its clinical meanings.

目的 利用超声评价三支病变的心肌梗死患者左室整体和局部心肌在心动周期各时相的纵向运动特点，评价左室局部心肌收缩和舒张功能，探讨其在等容舒张期出现的收缩后收缩现象及临床意义。

By using β-NADPH-diaphorase histochemical staining technique,wefound for the first time that NOS activity was detected in the epithelium of airpathway and endothelium of vessels but was not detected in the small vessels(ID＜100μm),and the NOS express in pulmonary vascular endothelium of preascitic andascitic broilers were elevated,especially in the endothelium and smooth muscle layer ofsmall vesseles with thicker walls and of muscularized nomuscular artery in asciticbroilers.

本研究从田间自然发生腹水症的肉鸡群中选取正常肉鸡、亚临床腹水鸡和腹水鸡为实验对象，通过比较这三种肉鸡血流动力学、心电图、动静脉血血气、肺外动脉舒张反应性、肺血管结构以及肺组织一氧化氮合酶的活性和分布等方面的不同，探讨了肺动脉舒张能力在肉鸡肺动脉高压形成中的作用和机制。

Regurgitant murmurs are generally early diastolic whereas ventricular filling murmurs occur in mid and late diastole.

回流性杂音一般出现于舒张早期，而心室充盈性杂音一般出现于舒张中晚期。

Quantitation of the ventricular systolic and diastolic functions in the longitudinal axis is clinically relevant since the contraction of the ventricle in this direction is mainly due to subendocardial fibers.

心室长轴方向上的收缩和舒张由心内膜下心肌纤维的运动引起，可客观反映心脏整体舒张和收缩的程度。

Weak correlation was found between right ventricular wall thickness and the ratio of early to late peak filling velocity (r=0.294 p＞0.05). However right ventricular filling parameters were unrelated to left ventricular mass index, left ventricular vall thickness, age and blood pressure.

右室舒张功能各参数与年龄，血压，左室重量指数，左室壁厚度无关，右室舒张功能指标中E/A比值与右室前壁厚度之间的相关系数r＝-0.294，但没有统计学意义。

The purpose of this study was to compare the vasodilating effects of angiotensin-(1-7) [Ang-(1-7)] on the different vessels and to clarify its mechanisms by using relaxing responses of preconstricted vascular rings.

实验采用兔外周动脉离体标本，在预收缩血管后，用血管紧张素[angiotensin--(1--7)，Ang--(1--7)]舒张血管，比较Ang--(1--7)对外周各血管床的舒张效应并分析其产生机制。

Further,the ratio between the left ventricular end-diastolic diameter and right ventric- ular end-diastolic diameterwas increased and directly prop- ortional to the size o...

测定左室舒张末径/右室舒张末径(LVEDd/RVEDd)比值，发现其值增大与室间隔缺损大小成正比例关系，认为可以将 LVEDd/RVEDd 比值作为预测室问隔缺损左向右分流量大小的指标。

We consider that the changes of LVDd and LVMI can also be utilized to follow up the conditions of compensative heart patients and evaluate the ambulating changes of LVDF. In conclusions, pulsed Doppler echocardiography signs, VO〓submax, PtfV〓 and LVMI are useful indexes for detecting the LVDF.

建议将VO〓submax与PtfV〓、LVMI一起作为衡量左室舒张功能的客观指标，与心脏B超所测得的多普勒指标结合起来，可对左室舒张功能不全的诊断提供更有力的佐证。

These results indicate that apelin-13 relaxes the thoracic aorta in the two groups and the response of vasodilatation is enhanced in the rat thoracic aortas from the 2K1C hypertension group. It may be an important protecting factor and play an important role in the protection of blood vessel.

Apelin-13具有显著的舒张主动脉的作用，并且对高血压大鼠血管环的舒张作用更强，提示Apelin-13在血管的保护作用中扮演了重要角色。

The restrictive filling pattern seen with severe heart failure may be due to diastolic dysfunction with elevated left ventricular diastolic pressure or may be merely a manifestation of an overfilled LV as a result of increased left atrial pressure.

限制性充盈模式被看作为严重的心力衰竭，其可能是由于增高的左室舒张压导致心脏舒张功能障碍或者可能仅仅是由于增加的左房压引起左室过度充盈的一种现象。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐