查询词典 developable surface

Since the highly accurate RF field was significant to the image reconstruction of parallel data acquisition and surface coil array design, Biot-Savart Law was applied to calculate the magnetic field of surface coil. Then the sensitivity of the RF receiver coil was presented by Biot-Savart Law and Ansoft HFSS respectively.

论文用Biot-Savart定律计算了表面线圈的场；并分别用Biot-Savart定律和高频电磁场仿真软件Ansoft HFSS给出了表面线圈灵敏度函数的分布，讨论了高频效应对线圈灵敏度函数的影响。

If the profile curve has been denoted by a nonuniform rational quadratic B-spline curve, it is very convenient to represent the surface of revolution as a nonuniform rational biquadratic B-spline surface.

只要轮廓曲线用非均匀有理二次B样条曲线来表示，就可相当方便地把旋转曲面表示成非均匀有理双二次B样条曲面。

The variations of oxygen-containing functional groups in carbon black surface (［O ZJY〗CO］mainly) were the main factors influencing on surface and interface properties of carbon black,which could adjust the CB—LDPE interface interactions, and the n result in the change of morphology of carbon black dispersed in LDPE matrix.

正是由于炭黑表面性质的这种改变，从而调节了炭黑-低密度聚乙烯的界面相互作用，导致炭黑在聚乙烯基体中的分散形态发生了相应的变化。

On the surface of it is a pellicle of Nano-Ti02. In the sunshine, anything attaching on the surface, including oil blotch and bacteria, as hydrocarbons, will be oxidated into gas or something easy to wipe.

其表面有一层薄纳米TiO2，在光的照射下，任何粘污在表面上的物质，包括油污、细菌，由于纳米TiO2的催化作用，使这些碳氢化合物进一步氧化变成气体或者很容易被擦掉的物质。

However, if the distance between the tungstn tip and Al (100) surface is close enough, about 9 Bohr, the single Al atom under the tungsten tip can be extracted from the surface without any electrical field.

与半导体情形不同的是，在针尖与样品表面距离小于约9Bohr时，仅依靠针尖作用可以让Al原子自动脱离Al（100）表面。

Results showed that:there were significant differences in the carbon to oxygen ratioamong various positions and processingconditions;lignin and abstracts mainly made up the surface of bamboo;high temperature drying resulted in the decomposition of volatile abstracts in the surface,whichindicated some structure of cellulose and hemicellulose,while the effects of processing with boracic acid were not apparent;the bamboo processed in hightemperature and with boracic acid showed decreasedfree hydroxide and activity at the same time;the amount of active free hydroxide of inner layer was higher thanthat of the outer.

结果表明：不同部位和不同处理条件下竹材表面的碳氧比有很大差异；竹材表面主要以木素和各种抽提物为主；高温干燥导致竹材表面易挥发的抽提物分解，使部分纤维素和半纤维素的结构特征得以显露，而硼酸处理效果不明显；高温处理和硼酸处理后竹材表面的自由羟基减少，活性降低；竹黄表面的活性自由羟基的数量高于竹青表面。

Prove that if this quantity is bounded above by that value of the Veronese surface then x is either a totally umbilical sphere or a conformal Veronese surface.

最后我们模仿3维的情况，引进一个保角不变量，并证明此保角不变量的上界若为Veronese曲面之值，则x不是全脐球面就是Veronese曲面的保角类。

Based on the plasto-elastic bounding surface model, the dynamic characters of typical clay and silt were studied through several types of laboratory dynamic tests. The parameters of dynamic bounding surface model were given upon the tests. By using a nonlinear procedure for response analysis of horizontally layered sites subjected to multi-directional earthquake loading, the response of acceleration, pore pressure and dynamic stress in Shanghai area under different earthquakes were studied.

在弹塑性边界面模型的基础上，通过试验，研究了上海地区典型粘土和砂性土的动力特性，取得了针对边界面模型的计算参数，并采用多向地震作用下的水平地层弹塑性动力反应分析程序对以深厚软土覆盖地层为特点的上海地区典型的土层断面，以苏南核电站为主的地震输入进行了场地反应分析，在加速度特性、孔压特性和动应力特性等方面取得了相应的结果。

A modefied egg function has been proposed and used in a bounding surface model. This model has potential value of applicaton since it reflects better actual situation of soil mass under loading. That is: when a stress point is still within the yield surface, the unrccovered plastic deformation would occur as stresses change, and using closed smooth function makes stress modification in the FEM much easier.

文中提出了一个改进蛋形函数，并采用这个函数建立了边界面模型，该模型由于机理上更好地反映了土体受荷时的实际情况，即当应力点在屈服面内时，随着应力状态的改变，仍然可以产生不可恢复的塑性变形，而在计算功能上由于使用了封闭光滑的边界面，不存在角点问题使有限元程序计算显得很方便，从这两个方面看，该模型具有潜在的应用价值。

For different substances that occur under two different light sources in two different stripes, when the slit mouth gradually Masuda Otsuki reduced, this process will find in the thin section of a gas light appears under the of the color overlay each other like , so that spectra of surface light intensity gradually weakened and finally win only the lower part of the spectrum not being added to the surface occurs, known as:"Bright-Line Spectrum."

对于不同物质在两种不同光源下出现的两种不同条纹，当把狭缝口逐渐増大即缩小，这一过程会发现在稀薄气体光源下出现一段一段的各单色象相互叠加，从而使谱面中光强逐渐减弱，最后只胜下部分沒被叠加到的谱面出现，被称为："明线光谱"。

Many will continue to choose to live in duality and in conflict.

许多人将继续选择活在二元对立性和冲突中。

I find that students of the University of Physical Education all wear sportswear at first sight.

我发现：体育大学的学生乍一看，都是穿运动衣，大家都一样