三维

For those considering splurging on a commercial 3D or 4D ultrasound, the best expert to talk to is their own OB/GYN.

对于那些考虑splurging对商业三维或四维超声，最好的专家，谈的是他们自己的露天焚烧

The project was based on the influence to the asphalt mixture volumectric property by the different compaction method (Marshall Compaction, Roller Compaction, Gyratory Compaction, Vibratory Compaction), a great deal of the experiments has been done with the consideration of the pratical construction. A lot of studies were carried out, such as the study of asphalt mixture image inquiring technique--"Colour Method", the feasibility study of the application of the 2D digital image processing technique on the asphalt mixture and the utiliztion of this technique on the compacting properties analysis of asphalt mixtures. A good beginning and foundation was made for the application of the digital image processing method on the study of the 3D asphalt mixture voluemetric components constitute.

本项目以研究不同沥青混合料成型方法（马歇尔击实、轮碾压实、旋转压实、振动压实）对沥青混合料体积特性的影响作为切入点，结合实际工程，进行了大量试验，开展了&色彩法&沥青混合料图像获取技术研究、沥青混合料二维数字图像处理技术的可行性研究以及采用该技术分析沥青混合料压实特性等研究工作，取得了一系列研究成果，为采用数字图像处理技术解决三维沥青混合料体积组成特性开创了良好的开端，奠定了坚实的基础。

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。

In this project, we set up the systematic methods for determine three-dimensional structure of proteins by using heteronuclear magnetic resonance.

通过本项目研究，建立了异核多维核磁共振测定蛋白质三维结构，研究结构与功能关系的系统方法。

On the basis of induced fibrillation theory, a mathematical model is developed to conduct a computer two-dimensional simulation under the consideration of short range repel and hydrokinetic obstruction.

在场致纤维理论基础上，考察短距离排斥力和流体动力学阻力，建立了基本模型，并对电流变效应进行二维计算机仿真分析；以库仑定律为理论基础，对电流变效应进行了三维计算机仿真分析；详细讨论了电流变体结构参数及外加电场对电流变体场致成链状况的影响。

According to the analysis, the 3D interference images are hyperboloidal beams and the 2D interference images are hyperbolic beams.

同时也分析出三维干涉图像为双曲面族，以及二维干涉图像为双曲线族的图像特征。

Based on the real observation data, forecast equitation or forecast model, the dynamics method such as divergence and vorticity calculation, real data correction, ascending and subsidence calculation was used to simulate the 4D field of divergence, vorticity and vertical velocity at different time, different range and different levels. The field was connected to 3D fields of insect trajectories, yielding the flying speed, direction, ascending area and subsidence. Thus the peak of immigratory insect could be timely monitored. A system of the peak of immigratory insect forecast was set up.

根据实际观测资料、数值预报方程或数值预报模式等输出的风场网格化处理结果，利用运动学方法、散度推算法、涡度推算法、实际资料订正法、升降法等对不同时间、不同范围、不同层次的四维散度、涡度和垂直运动速度场进行计算或模拟，将计算或模拟得到的散度场、涡度场、垂直运动速度场与昆虫迁飞的三维气流场联系起来，得到该类昆虫所具有的迁飞速度、方向、上升区和下降区，从而对昆虫的迁入峰进行实时预警。

Based on an analytical solution of 1-D unsteady flow, a set of analytical solutions of 2-D and 3-D unsteady perfect isentropic gas flow is developed.

根据以前寻找解析解的经验，导出了一套不定常二维、三维完全气体无粘可压流动的解析解，它可能是国际上唯一的二元、三元不定常可压流动的解析解。

Actually,there are some problems to be improved in Joshi's formula.3-D analytical productivity equation of horizontal well in infinite-acting reservoir with sealed boundary is derived.

对Joshi公式中垂直方向渗流阻力分母上少π的问题、偏心距的处理问题以及简化的二维渗流场与三维渗流场之间的差异问题进行了研究。

While the Chicago-Argonne experiments focused on two-dimensional sheets, they generally agree with computer simulations on similar three-dimensional assemblies of smaller nanoparticles conducted by Uzi Landman's team at Georgia Institute of Technology.

虽然芝加哥大学和阿贡实验室所做的实验主要针对二维薄片，但他们大体上认同乔治亚理工学院的乌兹·兰德曼研究小组对体积更小的纳米粒子所做的计算机模拟三维组装实验。

I can not make it blossom and suits me

我不能让树为我开花

When temperatures are above approximately 80 °C discolouration of the raceways or rolling elements is a frequent feature.

当温度高于 80 °C 左右时，滚道或滚动元件褪色是很常见的特征。