查询词典 planar developable surface

The most stable isomer of Si4N4 is a planar structure with 8 Si-N bonds.

Si4N4团簇的最稳定结构是有8个Si-N键的平面结构。

The authors discuss a special case here, namely the case of plannar isotopy. The main part of this paper gives two algorithms to determine whether two given knot/link diagrams are planar isotopic or not, and also compares them.

本文讨论了一种特殊情形下的得分类，即平面合痕下的等价分类问题，重点介绍了两种判断两个纽结图是否是平面合痕的算法，并对它们进行了比较。

objective to obtain the diffusion tensor maps of the normal human brain,and assess intrinstic properties of water diffusion in quantitative parameters for an anatomic analysis.methods maps of isotropic apparent diffusion coefficient and various anisotropic maps were calculated in60healthy adults from seven diffusion imagings by using single-shot echo-planar diffusion-weighted sequence.brain parenchyma anatomy was analyzed and adciso and various anisotropic index were measured.results （1）diffusion properties of different tissues and anatomic areas of normal adult human brain are different.diffusion in white matter is anisotropic;diffusion in gray matter is isotropic.

目的 获取正常人脑组织扩散张力性图像（diffusion densor imaging，dti），定量分析正常人脑组织水扩散的内在特性，进一步评价脑解剖结构。方法 60例健康正常人，应用单次激发epi-dw序列，计算出adciso图及各向异性图，分析脑实质不同区域的解剖结构，测量adciso（isotropic apparent diffusion coefficient）及各向异性指数。结果（1）脑内不同组织结构弥散特性不同，脑白质弥散表现为各向异性，而脑灰质弥散表现为各向同性。

The stress and strain of materials have mostly been analysed in planar isotropy.

迄今有关材料应力和应变状态的分析多限于面内同性材料。

This paper analyses the stress and strain in planar isotropy,and based on which,some aspects of the stressstrain curves determined by hydraulic bulge experiment were discussed.

本文在面内异性的前提下，对板料的应力和应变状态进行了分析，并且初步探讨了用液压胀形试验求得应力应变曲线的一些问题。

We present a real photograph and an imaging photograph of the array and we apply Jamin Interference method to manufacture hexagon aperture planar micro-lens array's interference slice and draw the refractive index distribution curve.

制作的平面微透镜阵列光学性能均匀，成像质量较好，离子交换后的变折射率区域有微小重叠，较大地提高了微透镜阵列的填充系数。

Jorum Media includes Planar originality department, Packaging design department, Enterprise image planning department and Dashan photography studio. We will use all the graphic elements to create integrated services to achieve visual expressing purpose for our clients.

君容传媒下设平面创意部、包装设计部、网络设计部、企业形象策划部及大山摄影工作室，为客户营造一体化服务调动所有的平面因素，达到视觉传达的目的。

Using the mechanism, we also fabricated large-area silicon nanowire p-n junction diode arrays by chemical etching of planar silicon p-n junction wafers in aqueous HF solution containing appropriate silver nitrate near room temperature.

进一步研究了硅衬底在HF-MoxMox=KAuCl4、K2PtCl6、Cu(NO32、Ni(NO3)2、Mg(NO3)2等氧化剂混合水溶液里的腐蚀行为，并提出了一种新的硅纳米线形成机制－金属枝晶辅助纳米电化学机制。

Using the normal planar technology of bipolar junction transistor,we have fabricated the p n p high frequency,high breakdown voltage transistors which can operate in the wider temperature range from -55℃ to 180℃.

一、引言新器件的设计基于以下三方面的考虑：（1）众所周知，常规双极结型晶体管的hFE随温度上升而增大，具有正的温度系数，特别在较高温度更为严重。

The program is intended for simulation of kinematics and dynamics of planar and spatial mechanical systems.

该计划是为模拟的运动学和动力学的平面和空间机械系统。

Fostering the concept of multi-culture firmly and mastering the development of advanced culture correctly are conductive to resisting terrorism, separatism of nationalities and ultraism of religion, which is of great academic theoretical, immediate and profound historical si...

牢固树立多元文化的理念和正确把握先进文化的发展方向，有助于在世界范围内自觉地抵制恐怖主义，民族分裂主义和宗教极端主义。不仅具有重大的学术理论意义，而且也具有重大的现实意义和深远的历史意义。

But if anyone walks in the night, he stumbles, because the light is not in him.

11：10 若在黑夜行走，就必碰跌，因为那光不在他里面。