查询词典 ellipsoidal

For testing the concave ellipsoidal mirror of Three Mirror Cassegrain optical system, a slab compensated auto-collimation method is suggested.

针对TMC光学系统凹椭球面主镜的检验，本文提出了一种平板补偿的自准检验方法。

Finally, the results of aberration comparison indicated ellipsoidal dome can be used in coaxial infrared optical system, and conical surface has unique advantages in off-axis system.

最后根据像差的比较结果，得出：椭球面整流罩适用于共轴光学系统中，圆锥面整流罩则在离轴系统中更有独特的优势。

Now there is a hyperboloid, a concave ellipsoidal surface and a convex sphere surface need to be done.

现在是一个双曲面，一个凹椭球面，一个凸椭球面

In this paper, the principle and method of 3D visualization by geodesic coordinate system of ellipsoidal surface are proposed.A three-dimensional model for geographic information system visualization by ellipsoid-based digital terrain model is suggested for the first time.

虽然三维GIS在理论研究方面已经有了很大进展，但实现一个成熟完整的三维GIS系统还是相当困难的，目前在实际应用中与三维GIS相关的大多集中在三维可视化方面，如城市三维景观模型[1～ 3] 、矿区模型[4 ] 等。

Based on the theories of Differential Geometry and Geodesy,algorithms and formulas for direct and inverse solution of geodetic problem in the new form of geodetic coordinate system on the ellipsoidal surface are deduced in this paper.

基于地球椭球面上所构建的新型大地坐标系，推导出用新大地纵横坐标表述的大地主题解算公式，并研制了相应的正反解算法。

The DEM in the new geodetic coordinate system on the ellipsoidal surface is different from the DEM in the projection plane.

基于此种坐标系在椭球面上建立DEM不同于基于地图投影概念的DEM。

Based on simulation results, the field characteristics of some kinds of non-axisymmetric focusing surfaces, including cylindrical surface and ellipsoidal surface, are analyzed.

以声场模拟为基础，分析了包括柱面聚焦和扁椭球面聚焦等在内的几类非轴对称聚焦曲面声场特性。

The ellipsoidal coordinates are introduced to solve the unknown displacement and electric potential jumps in the integral equations under uniform loading.

引入椭球坐标系后，得到了均布载荷作用下未知位移间断和电势间断的解析解。

Based on the ellipsoidal coordinates, we obtain the spacial distribution of electric potentials of a composite of a coated ellipsoid embedded in an infinite host via solving the Laplace equations and matching the boundary conditions. Meanwhile, we also obtain the partially resonant condition of the coated ellipsoid.

通过引入椭球坐标系，利用拉普拉斯方程及其边界条件，求出了带壳椭球颗粒镶嵌在无限大线性基质中的空间电势分布，并进一步得出了带壳椭球颗粒的部分共振条件。

Based on a nonclassical theory of plasticity and the continuum damage mechanics,a damage constitutive equation is obtained for the ferrite phase with the damage evolution law for mixed hardening materials from an ellipsoidal void model under particular coordinates,where the void shape variation is considered.

基于非经典塑性理论和连续介质损伤力学，利用在一个特殊坐标系下基于椭球形孔洞模型得到的可考虑孔洞形状变化混合强化材料的损伤演化率得到了铁素体相的损伤本构方程，通过混合物理论利用铁素体和渗碳体相各自本构关系并考虑其几何特征得到了珠光体团的损伤本构模型。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。