星下点的英文

• sub satellite point
• substellar point = subastral point

• "星"英文翻译    star
• "下"英文翻译    below; down; under; undernea ...
• "点"英文翻译    drop
• "赤道星下点" 英文翻译 :    equatorial sub satellite point
• "卫星星下点" 英文翻译 :    subsatellite point; sub－satellite point
• "星下点某瞬间地理位置" 英文翻译 :    subastral point = substellar point
• "下点" 英文翻译 :    subpoint
• "鼻下点" 英文翻译 :    spinal points; su asal point; subnasal point
• "日下点" 英文翻译 :    [天文学] subsolar point
• "腋下点" 英文翻译 :    under arm point
• "月下点" 英文翻译 :    sublunar point
• "最下点" 英文翻译 :    nadir
• "颌下点" 英文翻译 :    gnathion
• "颏下点" 英文翻译 :    gnathion
• "颔下点" 英文翻译 :    gnathion
• "颞下点" 英文翻译 :    subtemporal points
• "恒星下中天" 英文翻译 :    subpolar culmination of a star
• "山星下水" 英文翻译 :    mountain star lower water
• "在摩羯星下" 英文翻译 :    under capricorn
• "在土星下" 英文翻译 :    under saturn
• "标题挪下点" 英文翻译 :    bring the caption down
• "眶最下点" 英文翻译 :    orbitale
• "日下点高度" 英文翻译 :    subsolar point altitude
• "日下点温度" 英文翻译 :    subsolar point temperature
• "鼻下点到颏下点间距" 英文翻译 :    ll-me

• Gps ; tec ; flare ; subionosphere point
  Gps tec耀斑星下点
• Sub - satellite point
  卫星星下点
• 3 . expatiated on the application theory of basic orbit , including subastral point calculation , visibility analysis , coverage evaluating and spacecraft life - span estimate
  3 、阐述了基本轨道应用分析理论，包括星下点轨迹计算、可见性分析、覆盖评估和轨道寿命估算。
• In order to increase pointing precision , the error caused by inductosyn and ad2s80a are analyzed as a focus , consequently , high precision inductosyn is used , then current iscompensated and finally the input and output differences are adjusted when
  根据卫星轨道姿态,运用球面三角形找出卫星及星下点与目标点之间的关系,建立了指向反射镜与目标点的角度关系。
• 4 . realize the render and display of subastral point tracks on the global satellite images . also include the display of satellite coverage ; realize the render of the three - dimension scene in which satellites orbiting the earth , including the render of satellite track and satellite model ; realize the render of scene based on the ground viewpoint , including the render of sky background , satellite ana satellite track
  4 、实现了在全球卫星影像地图上卫星的星下点轨迹的绘制和显示,以及覆盖区域的显示;实现了卫星围绕地球旋转的三维场景显示、卫星轨迹显示以及卫星模型显示;实现了以地面观测站为观测视点的场景显示,地面以及天空背景显示,卫星及卫星轨迹显示。
• The distinct trait of sun synchronic orbit satellite is that there will be the same sun conditions in the subpoint of the satellite wherever the satellite is , it benefits the earth reference equipments . and the regressive orbit satellitr ' s trait is that the satellite can cover the earth periodic , it benefits the dynamic reconnaissance . because of these merits , the sun synchronic and regressive orbit become one of the most popular orbit types
  太阳同步轨道的主要特点是卫星在任一时刻其星下点的阳光条件基本相同，这对卫星上对地仪器的工作是非常有利的。而回归轨道的特点是周期性地覆盖地球，这有利于对地球上动态目标的侦察。由于以上的优点，太阳同步回归轨道成了所有卫星轨道中最常见的轨道之一。
• So combine the item of “ space targets surveillance photoelectricity telescopes arrays system ” , this thesis does research in developing space targets visualization system . the main achievement in this thesis can be summarized as follows : 1 . expatiate e the basic theory of satellite track dynamic , analyse the orbit characteristic of two - body problem and launch window , subastral point calculation , visibility and coverage analysis , two - line element sets
  本文结合“空间目标监视光电望远镜阵系统”课题,进行了空间目标可视化系统的设计和研究,主要作了以下几方面的工作: 1 、阐述了卫星轨道动力学的基本原理,分析了二体轨道特性和发射窗口的基本特性,星下点轨迹计算、可见性和覆盖分析和两行根数。