天文

Technology of interspaces observation not only includes satellite communication, radio astronomy and atomic clock's technique, but also sensitive to the advance of DSP and computer soft.

空间观测技术不仅是包含卫星通讯、射电天文和原子钟技术，而且对信号处理和计算机软件技术的发展也十分敏感。

Array signal processing is an important aspect of modern signal processing. It can be applied in many fields such as radar, sonar, exploration seismology, radio astronomy, tomographic imaging.

阵列信号处理是现代信号处理的重要研究内容之一，其应用范围很广，可用于雷达、声呐、通讯、地震勘探、射电天文和医用成像等众多领域中。

The estimation of signal parameters is an important research field of modern signal processing. It finds wide applications in many fields, such as radar, communications, sonar, seismology, radio astronomy, biomedicine engineering, etc. So, its study is of great theoretical and practical value.

信号参数估计是现代信号处理领域内一个重要分支，它在雷达、通信、声纳、地质勘探、射电天文以及生物医学工程等众多领域有着广泛而重要的应用前景，因此对各种参数估计方法的研究有着重要的理论和应用价值。

The concept , main composition and key technologies of the deep space network are introduced. The DSN's meaning and application to radio astronomy and space detection are summarized. Last, the prospect of DSN is discussed.

阐述了深空网的概念、主要任务、发展简史、主要构成和关键技术手段，概括总结了深空网在天文观测和空间探测中的意义及应用过程，展望了深空网的发展前景。

As the modern astronomical observational technique with the highest resolution, VLBI can provide key contribution to the study of relativistic jets structure, superluminal motion and bending jet of γ-ray AGNs. It is helpful to discover the relationship between γ-ray and radio emission of them.

VLBI技术是现代天文观测中能获得最高分辨本领的观测手段，利用VLBI技术对γ-ray AGNs的相对论射电喷流结构、视超光速运动和喷流的弯曲进行研究，将有助于我们探索该类源的γ-ray和射电辐射的关系。

It is called a radio telescope because a radio antenna is used to observe radio waves emitted by astronomical sources.

它被称为射电望远镜，因为收音机的天线是用来观察天文活动所排放的无线电波。

This is a reconstruction of the telescope.

这是一只仿造的天文望远镜。

Delicate curtains of dust partially obscure and redden the light of the stars behind them.

因尘埃而显得模糊不清的精巧的帘幕(原词是curtain，因没有找到确切的天文意思，先只能这么翻译)和在它们后面变红了的星光。

Galileo pioneered "experimental scientific method" and was the first to use a refracting telescope to make important astronomical discoveries.

伽利略是科学实验方法的先驱，他是第一个使用折射望远镜的科学家。他利用它观测到了重要的天文现象。

He uses a custom-built 8-inch f/13 refractor in a roll-off-roof observatory behind his house.

在他的车库天文台中，他使用一台定做的8英寸f1/3的折射望远镜。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。