查询词典 3D

Objective To evaluate the clinical application of 3D dynamic contrast enhanced MR angiography (3D DCEMRA) with the techniques of total image matrix in diagnosing lower extremity (femoropopliteal and infrapopliteal) artery stenosis, and compared with DSA as the golden standard.

目的以数字减影血管造影为金标准，对比评价Tim技术三维动态增强磁共振血管成像(3DDCE-MRA)在下肢动脉狭窄中的临床应用价值。

Objective:To assess the value of high-resolution 3D contrast-enhanced MR angiography(3D CE MRA)in the diagnosis of renal artery fibromuscular dysplaisa.

目的：评价高分辨力三维增强磁共振血管成像术(3D CE MRA)诊断肾动脉纤维肌层发育不良的价值。

Concrete algorithm is firstly recognizing 2D feature obtained from geometric entities, then on the instruction of the shape analysis combining with the projective rulers of mechanical drawing, matching three 2D view features, creating 3D basic model, forming a operation list, finically finished 3D reconstruction.

在重建算法上，利用提取的几何实体进行二维视图特征的识别，在形体分析法的指导下，结合制图中的投影原则匹配三维基本形体，最后按照基本体素的运算序列经过复杂的布尔运算完成重建。

Three dimensional (3D) honeycomb-like porous structures made up of nanoslices of hydroxy cupric phosphate heptahydrate Cu8(PO3OH2(PO4)4·7H2O single crystals were constructed by a facile assistant surface oxidation technology. The pore size of the 3D structure ranges from hundreds of nanometers to two micrometers, and the thickness of the two dimensional (2D) nanoslices is about 50~100 nm. The wettability of the porous surfaces was transformed from superhydrophilic to superhydrophobic by chemical modification with octadecanethiol or PDES.

相对于硬脂酸修饰表面，氟硅烷修饰表面对水滴具有更低的接触角滞后和较低的黏着，这可能是因为氟硅烷比硬脂酸具有更低的表面自由能所致。2、利用酸辅助的表面氧化技术制备了由Cu8(PO3OH)2(PO4)4·7H2O单晶组成的三维蜂巢状多孔结构，孔尺寸约为几百纳米到2微米，二维的纳米片厚度为50~100 nm。

The mathematical model applied in this paper includes a 3D hydrodynamic model and a 3D water quality model.

本文采用的数学模型包含三维水动力学模型和水质模型。

The 3D topography of fractured surfaces was reconstructed and quantified by the means of SEM stereo pairs, image processing and analysis, and computer vision. It was shown that measured 3D roughness indexes Rs, Rq and Rmax have good positive relations to the crack propagation part of absorbed impact energy. Although fractal behavior had been checked out on the fractured surfaces, the fractal dimension was found nonsensitive to the fracture mode and mechanical properties. The geometric characteristics of fractal fractured surfaces should be quantified in fractal dimension together with absolute parameters.

利用扫描电镜立体对技术、图像处理与分析和计算机视觉方法对示波冲击断口形貌进行了三维重建和定量分析结果表明，断口三维粗糙度指数Rs，Rq和Rmax与示波冲击裂纹扩展功有很好的对应关系，显示了它们良好的应用前景断面虽然表现出分形行为，但分形维数是一个对断裂模式和性能不敏感参量对分形断口的几何特征描述应将分维和绝对尺度结合起来

3D Pano Viewer Professional enables people to interact with panoramas allowing them to look around, zoom in and out and look up and down, examine several panos in one applet, move from a pano to a pano, use a navigation panel, create panorama tours - all this creates a feeling of real being inside a 3D panorama.

三维pano观众的专业使人们能够互动与全景，让他们环顾四周，放大和缩小并期待向上和向下，研究几个帕诺斯在一个applet程序，由一个pano一个pano ，使用的导航面板，创建全景之旅-所有这将创建一个真正的感觉，正在内的三维全景。

For 3D model copyright protection, we propose a robust watermarking algorithm for 3D models which embeds watermark information by perturbing the distance between the vertices of the model to the centre of the model.

针对三维模型版权保护应用，我们提出了一种稳健的三维模型水印算法，它通过修改从模型中心到顶点的向量长度来嵌入水印。

Physiologically, our model estimated 2.6 days to reach the single ridge stage, 5.6d to the double ridge stage, 11.3d to the stamen and pistil initiation stage, 13.1d to the anther separation stage, 15.3d to the pollen mother cells stage and 18.2d to the tetrad stage. Phenologically, estimations were 13.1d to reach the jointing stage, 28.7d to the heading stage, 32.8d to the grain filling stage and 51.5d to the maturity stage. PDT was consequently used as a unified scale for measuring developmental progress of different cultivars under different climates and cultural practices.

经测算，各大麦品种到达单棱期、二棱期、雌雄蕊分化期、药隔形成期、雌蕊柱头二裂分叉期、雌蕊柱头毛状突起期等顶端发育阶段的生理发育时间分别为2.6、5.6、11.3、13.1、15.3、18.2、28.7d，到达出苗期、拔节期、抽穗期、灌浆期和成熟期等主要物候期的生理发育时间为0、13.1、28.7、32.8、51.5d，形成了不同大麦品种在不同气候和栽培条件下统一的衡量发育的定量尺度。

Complex (2) through the dissociated pyromellitic acid hydrogen bonding between the ligand and the phen ligand stacking interaction between the formation of a 3D supramolecular structure, but the complex (3) is only through the phen ligand between the stacking structure of the formation of 3D supramolecular structure.

配合物(2)通过游离的均苯四甲酸配体之间的氢键作用和phen配体之间的，π-π堆积作用形成了3D超分子结构，而配合物(3)则只是通过phen配体之间的π-π堆积作用形成3D超分子结构。

Nowadays, most of research are to build a transmutative Petri Nets through adding controlling place sets, controlling arc sets and controlling policy to the basic Petri Nets, while the Controlled Petri Nets could be used to argue many controlling theory problems conveniently and to induce many logically and physically supervisory and solve the Event Feedback Controlling Problems and State Feedback Controlling Problem in DEDS supervisory theory.

目前大多数的研究表现为在变形后的受控Petri网基础上，利用各种方法求得各种逻辑型、结构型控制器，解决DEDS监控理论中的事件反馈控制问题与状态反馈控制问题。

On one hand, there are discussions with the works council and union about extension of short time working up to the end of September.

一方面，有讨论，工程理事会和联盟关于延长工作时间短至9月底。