Owing to the decametric wavelength, the angular resolution of High Frequency Surface Wave OTH Radar (HF SWOTHR) is usually coarse especially when dimensions of antenna array are restricted.
由于工作在高频段,高频地波超视距雷达的角分辨力较差,尤其是当阵长受限时。
Geometrically angular shapes have more surface area than rounder shapes, which in turn affects the binding capacity of the particle to other, possibly more dangerous substances.
几何角的形状有圆的形状,这反过来又影响等,可能更危险物质粒子的结合能力比表面积超过。
The angular resolved scattering light from a optical metal surface was measured in the plane of incidence.
本文用半导体激光器测量了金属表面散射光在入射平面的角度分布。
The method and results would be useful for analysing angular and frequency dependence of the bottom (or surface) scattering at low grazing angles.
本方法和结果将有助于分析小掠角海底(面)散射的角度、频率依赖关系。
Those same forces also cost the planet its angular momentum , pulling it inward, eventually to the point where it will smash into the star's surface.
这种相互作用使得该行星的角动量减小,因而不断向内靠拢,最终会撞入恒星的表面。
Theoretical evaluation of the angular scattering enhancement around the back-scattering direction from a randomly rough surface is studied by employing the Kirchhoff approach.
用基尔霍夫近似,研究了随机粗糙面后向散射方向上角度性的散射增强的理论。
The sliding surface of s type angular contact spherical plain bearing inner ring is a non -symmetrical spherical surface.
型角接触关节轴承内圈的滑动表面是不对称球面。
Product Characteristics: Medium toughness; Angular blocky shape; Rough surface.
产品特性:产品为中等强度、颗粒呈多角块状、表面粗糙。
The tooth surface is described by TCA method. The model can be put into any angular position of gear. The change in mounting condition is also considered in the global coordinate.
该算法用TCA描述齿面坐标,能自动适应齿轮副任何瞬时转角位置:并在形成整体坐标时考虑了安装条件的变化;
The combination of very large radio flux and exceedingly small angular size means that the sources have a fantastic surface brightness.
极大的射电流量同极小的角经集于一身,意味着这些发射源有难以置信的高表面亮度。
The nonlinear mapping relation among the PSD of vehicle body centroid vertical acceleration, pitching angular acceleration and the road surface were found by RBF neural networks.
应用rbf神经网络建立了汽车车身质心垂直加速度功率谱密度、俯仰角加速度功率谱密度和路面功率谱密度之间的非线性映射模型。
The angular displacement of reflecting surface is measured in accordance with the direction change of Moire fringes caused by the inclination of grating. self-imaging plane.
利用光栅自成象面的倾斜引起莫尔条纹方向变化来测量反射表面的角位移。
The angular distribution of the bistatic scattering cross-section from fractal sea surface for different fractal dimension and different spatial frequency is analyzed.
分析了不同分维下分形海面双站散射截面的角分布情况。
This paper is to display existence and its conditions to a surface acoustic wave propogating along surface of a half-body of piezoelectric ceramics with a rotation of constant angular velocity.
对转动半无限压电陶瓷体的表面声波给出了存在性证明及其条件。
This textual is a theoretical analysis of force on the angular ogee milling the flat surface in injection molds.
本文从理论上分析了注塑模具中斜导柱铣扁后的受力状态。
The angular distributions of the far-scattered fields, near-surface fields, as well as the two eigen modes for the internal fields are analyzed.
研究了双各向同性介质球对高斯波束的内场、表面场和远区散射场分布特性。
Angular deviation from a vertical or horizontal plane or surface; an inclination or a slope.
在垂直面需要起模斜度以便模样从铸型中拔出。
Angular deviation from a vertical or horizontal plane or surface; an inclination or a slope.
在垂直面需要起模斜度以便模样从铸型中拔出。
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