切面

Parasternal long axis and abdominal aorta long axis images were acquired by a 15MHz high-frequency linear ultrasound transducer at 4 weeks and 8 weeks after operation, respectively.

术后4周、8周采用飞利浦HDI5000超声诊断仪、15MHz：高频线阵探头，经胸骨旁左室长轴切面及腹主动脉的长轴切面进行检测。

The cyclic variation of integrated backscatter and echo intensity of three different myocardial regions perfused by left anterior descending coronary artery, left circumflex coronary artery and right coronary artery (on the frozen frame of parasternal short-axis image,those position were approximately at the 12, 4 and 8 o'clock direction to the center of the left ventricle, respectively) were measured with HP-5500 ultrasonic system and DFY ultrasonographic quantitative analysis system.

在35例急性心肌梗死患者发病2周内，用HP-5500型超声诊断仪和DFY型超声图像定量分析诊断仪，在胸骨旁左室乳头肌短轴切面，分别测量冠状动脉左前降支、左回旋支和右冠状动脉支配区域心肌组织(分别相当于左室乳头肌短轴切面上12、4、8点的位置)的IB和EI心动周期变化幅度值，以CVIB和CVEI值≤同一切面三个不同部位中最高值的1/2作为诊断心肌梗死的标准，部分病例与冠脉造影结果对比。

In the parasternal four chamber view or the main artery of the short axis view,Continuous Doppler spectrum showed tricuspid regurgitation,Measurement of the maximum tricuspid regurgitation velocity,Used to estimate the maximum pulmonary artery systolic pressure.

在胸骨旁四腔切面或大动脉短轴切面，应用连续多普勒显示三尖瓣返流频谱，测量三尖瓣最大返流速度，用以估测最大肺动脉收缩压。

All subjects recieved the test of Two-Dimensional echocardiography and PW-TDI.3.1 LV end-diastolic diameters, RV end-diastolic diameters and inter-ventricular septum and posterior wall thicknesses were measured from the parasternal long-axis projection. LV end-systolic and diastolic volumes,RV end-systolic and diastolic volumes were obtained from the

所有入选者均行常规二维超声和组织多普勒超声心动图检查 3.1 常规二维超声心动图(two-dimensional echocardiography，2D)检查：采用胸骨旁左室长轴切面M型测量左室舒张末期前后径、右室舒张末期前后径、室间隔厚度、左室后壁厚度；心尖四腔、二腔切面面积勾画法分别测量左室、右室舒张末期容量和收缩末期容量并计算左室

Phase equilibria of the 300℃ isotherm in the Tl-Ge-S ternary system andTl_2S-GeS_2 and Tl_2S-GeS polythermal pseudobinary section were investigated bymeans of evacuated quartz glass capsules in this work.

本文用抽真空石英管在干体系中对Tl-Ge-S三元系在300℃等温切面相关系和沿Tl_2-GeS_2及Tl_2-GeS变温切面假二元系相平衡进行了实验研究。

Methods:50 whole brains were serially horizonatally sliced with each section 2 mm in thickness.The two -dimensional image of each section was corrected and aligned at first.After corre spondence by experts identifying thalami,tiling based on contour matching and surface-fitting with NURBS interpolation,thalami were reconstructed on computer.

对50只整脑100个丘脑作2 mm厚的连续水平切面，运用表面重建法对丘脑进行计算机三维重建；首先对各切面二维图像进行配准与校正，再采用专家辩认核团、基于轮廓匹配的轮廓拼接、非线性有理B样条插值等方法手段，精确地重建了丘脑。

Either of two quadric surfaces generated by rotating a hyperbola about either of its main axes and having a finite center with certain plane sections that are hyperbolas and others that are ellipses or circles.

双曲面两个二次曲面的任何一个，通过使一个双曲线绕其任何一根中轴旋转而成，而且旋转时有一个有一定双曲线平面切面的中心，而其他切面是椭圆或圆周

Either of two quadric surfaces generated by rotating a hyperbola about either of its main ax es and having a finite center with certain plane sections that are hyperbolas and others that are ellipses or circles.

双曲面两个二次曲面的任何一个，通过使一个双曲线绕其任何一根中轴旋转而成，而且旋转时有一个有一定双曲线平面切面的中心，而其他切面是椭圆或圆周

The results show that some twin crystals and honeycomb structures appear in the shear plane and many kinds of deformation mechanism exist such as extruding, kinking and so on. When annealed at 550 ℃ for 2 h, the recrystal gains are observed in the shear plane. Especially the side receives the cut of guillotine, the size of recrystal grain is very thin, corresponding with the recrystal grains obtained by cold rolling at 80% deformation rate.

结果表明：经剪切变形后，切面处形成一种独特的带状变形孪晶和蜂窝状变形组织，且存在挤压、扭折等多种变形机制的作用；合金在550 ℃退火2 h后，切面出现许多再结晶晶粒，且在承受剪床切口的一边再结晶晶粒非常细小，相当于冷轧变形80%后的再结晶晶粒尺寸。

B, Cross-sectional scan at the lower abdomen of a different patient shows somewhat turbid ascites with relatively thick and incomplete mobile septations.

图1 A，下腹部横切面扫描显示腹水相对清晰，其内发现有不完全可活动的分隔。B，另一病人下腹部横切面扫描显示腹水混浊，分隔相对增厚，有不完全的分隔，可活动。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。