矢

In order to solve Oldano-Barbero paradox caused by the splay -bend elastic constant k13 in the continuum theory of nematic liquid c rystals,we determine the distribution of the director in the planar al ignment nematic liquid crystal cell by means of finite elements method .

为了解决液晶连续体理论中出现的Oldano-Barbero矛盾，用有限元方法计算平行排列盒中的指向矢分布。

You know that under the Migratory Bird Treaty it's against federal law to contain a curved-bill thrasher.

你们应该知道，根据候鸟条约，收容矢嘲鸫是违反联邦法律的。

The coupling of linear antennas parallel to the minor axis in a elliptic waveguide are discussed by means of dyadic Green s function and reaction principle.

采用并矢格林函数和反应原理，讨论了椭圆波导中平行于短轴的线天线的互耦合。

Performance checking and measuring of the first sagittal focusing monochromator in internal had been successfully achieved out of beamline,ch...

利用该方法，完成了我国第一台弧矢聚焦双晶单色器的离线检测，检测结果达到了理论设计指标，表明了测试方法的有效性。

The basic wave-vector decreases monotonously with temperature as observed in experiment.

它的基波波矢随温度而单调地下降，与实验观察到的现象一致。

There may be more extra-landm ark noise associated with the measurement of angle NAPg than with the other thre e angles.Since change in SNA is affected by Nasion horizontal displacement,its r epresentation of Point A displacement was questionable.

除了NAPg，其它3个角度的变化基本能反映出颌骨及牙齿在矢状方向的位置改变，但SNA角的变化在一定程度上同时受N点水平向位移的影响，使其反映A点水平向位置改变的可靠性受到影响。

METHODS: Measurement of palatal raphe area first three-dimensional reconstruction of images at up to nasion plane centerline, whichever was determined as a reference surface plane, selection one point on incisor cervix in this line, to measurement of the available palatal bone height; sagittal views were selected at 6 mm dorsally from the incisive canal. The available bone height was defined as the distance from the palatal baseline (lower cortical border of the palate) to the nasal cavity (upper cortical border of the nasal cavity).

先在三维重建图像上以鼻根为准确定面中线平面为参考平面，在此线上选择1个位于中切牙牙颈部的点，在其矢状位图像上，选取位于口腔内侧骨皮质上距切牙孔后缘6 mm处为标测点，通过此点向硬腭做垂线确定腭骨厚度，测量范围自口腔内腭部骨皮质外侧边缘至鼻腔侧骨皮质外侧边缘。

Firstly, quadric surface is approximated with the vertex and its neighboring vertexes of the triangle mesh model, and the first and the second basic quantity are calculated, then estimating the normal and curvature of the mesh vertexes, lastly OpenGL technique is used in realizing the graphics display of the triangle mesh model.

首先根据三角网格模型中的顶点及其邻接点逼近二次曲面，并计算其第一、第二基本量，然后据此估算网格顶点的法失和曲率，最后利用OpenGL技术实现三角网格模型法矢和曲率的显示。

The dependence of director orientation of positive dielectric anisotropy nematic liquid crystals on static electric field is discussed.

讨论了静电场对正介电各向异性的向列相液晶指向矢取向的影响。

Basing on super twisted nematic and chiral-homeotropic LCDs, the performance of the LCDs is improved after optimization.

在液晶连续体弹性形变理论的基础上，提出差分迭代方法求解液晶指向矢的空间分布。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。