occultation造句

• From lunar occultation experiments at infrared wavelengths, it has been determined that the dust shell can be represented by two components .
  通过红外波段的月掩星观测，已经确定该尘埃壳是由两个成分原组成。
• After a long period of occultation he again showed his face at the club
  长期隐匿之后他又在俱乐部露面了。
• A lunar occultation of a quasar
  类星体的月星掩测定
• What public advertisement would divulge the occultation of the departed
  用什么样的广告把离去者失踪一事公诸于世？
• The noise occultation was significant , and the undertone was the easiest one to be occulted
  噪音对信号的掩蔽作用显著，其中低音最易被掩蔽。
• Inversion of earth ' s neutral atmospheric parameters and bending angles with gps occultation data
  掩星资料反演地球中性大气参数折射角方法研究
• The probe was equipped with a radio occultation experiment to profile atmospheric density
  我的理解是:探测器装备有一个用于探测大气层密度的掩星实验装置
• Occultation complete or partial obscuration of an astronomical object by the moon or a planet
  月球和行星运行时，完全或部分掩蔽背景天体的现象，称为掩星。
• The probe was equipped with a radio occultation experiment to profile atmospheric density
  探测器上配备有一个用于测定（绘）大气密度轮廓的无线电掩星实验装置。
• The precise timings of occultations provide information about planetary atmospheres , the dimensions of extended visible , radio , and x - ray objects , and the positions of objects
  准确纪录掩星现象的时刻能提供有关行星大气，不同类型星体大小和准确的位置。
• This observation occurred during a solar occultation , where the sun passed directly behind saturn and left cassini in saturn ' s shadow with brilliantly backlit rings
  此次观测是当太阳正从土星后面经过而卡西尼号则处在土星的阴影中时进行的，在背光中光环显得很明亮。
• 2 . the inversion techniques of occultation data are described and discussed in details . taken gps / met observations as examples , the atmospheric parameters profiles are retrieved accurately
  5 、利用人工神经网络方法同化电离层掩星观测数据,建立经验电离层模式,并应用之做短期的电离层预报。
• Radio occultation technique for the earth ’ s atmospheric profiling , a new application of the global navigation satellite systems , is one of the most advanced space exploring techniques in the 21st century
  地球大气无线电掩星观测技术是导航卫星应用新的生长点,是21世纪最先进的空间探测技术之一。
• We can only detect the brightening of the occulted object by the " focusing " action of the gravitation lens . this effect is called microlensing . theoretically , einstein ring is formed whenever occultation happens
  由于黑洞的强大引力，它会吞噬伴星上的物质，但这些物质并不会直堕进黑洞内，而是以螺旋状轨迹卷进去，形成一个旋涡盘，所以科学家称之为吸积盘。
• With the three - dimensional ray - tracing program , the simulation of leo - gps occultation is given . the radio path of occultation observation is simulated , and then the excess phase delay is calculated . this work can be used for studying the effects of the neutral atmosphere and ionosphere on the occultation observations and evaluating the performance of the inversion techniques
  本文介绍了无线电掩星技术的发展状况和基本原理,围绕无线电掩星技术及其应用研究展开诸多研究和探讨,主要工作内容如下: 1 、利用全球三维射线追踪程序,开展leo - gps掩星观测的模拟研究,以计算掩星观测时电波传播路径、计算大气引起的附加相位时延等。
• This technique can measure the profiles of meteorological fields of the neutral atmosphere and the electron densities of the ionosphere with high precision and high vertical resolutions . it can operate all - weather with long - term stabilities and global coverage . the global - distributed occultation data will have a huge promotion on the numerical weather prediction , climate and space weather researches
  该技术可测量自地面到约800km高空的中性大气气象场和电离层电子密度剖面,具有全天候、长期稳定、高精度和高垂直分辨率等特点;该技术提供全球分布的资料,将对数值天气预报、气候研究和空间环境研究起极大的推动作用,在气象、空间、天文以及国防领域具有广泛的应用前景。
• In the fifth part we describe the procedure of amalgamating target and put emphasis on the research of target tracking method , by building up the moving status of target we can solve the problem of occultation . - - filter is adopted to predict next position of target so we can reduce the range of seeking matched target
  在跟踪过程中，着重针对多个运动目标遮掩的情况，设计了基于运动状态的识别和跟踪方法，并利用常系数的kalman滤波器对运动目标的位置进行预测，解决了目标遮挡情况下的识别和跟踪问题。