sub-arcsec radio astronomy

As technical developments and knowledge improvements, radio astronomy, infrared astronomy, ultraviolet astronomy, X-ray astronomy and γ-ray astronomy were developed one by one during some decades from 1940s, and.

随着技术进步和认识上的提高,从1940年代起的几十年中,相继诞生并发展了射电天文学、红外天文学、紫外天文学、X射线天文学和γ射线天文学,从而实现了对天体辐射观测的全波段覆盖,诞生了多波段天文学,人类对宇宙和宇宙中各类天体、天象的物理本质的认知迈入了全新的阶段。

Radio astronomy today is armed with the largest antennas in the world.

射电天文学拥有世界上最大的天线。

a leading American radio-astronomer,

美国一位重要的射电天文学家,

Why can radio astronomers observe during the day, whereas optical astronomers are( for the most part) limited to nighttime observing?

译文:为什么射电天文学家可以在白天观测,而光学天文学家的绝大多数观测只能在夜晚进行?

We are used to calling an instrument of this kind in optics a telescope, and the radioastronomical counterparts are therefore briefly named "radio telescope".

在光学上我们通常称这种类型的仪器叫望远镜，因而射电天文学上的对应物简称为“射电望远镜”。

it must be known to any kind of radio-astronomer in the universe.

这个频率是宇宙中任何射电天文学家都应该熟悉的。

The Effects of the Techniques and the Corresponding Background Theories in Historical Accomplishments of Radio Astronomy and the Consideration Toward the Scientific Growth and the Views of Philosophy of Science;

射电天文学历史成果中的技术作用和理论背景及其思考

The mass of one of these suppressive black holes has recently been measured using radio astronomy.

对于这些有着巨大质量的黑洞，最近可利用射电天文学来测量它们的质量。

Radio astronomers are now able to synthesize the response of a partially filled aperture of large diameter and thus to map variations in nebular brightness.

射电天文学家现在已经能够把部分充满的大直径孔径进行综合，从而描绘出星云亮度变化图。

microwave radio astronomy radiometer

微波射电天文辐射计

OVRO (Owens Valley Radio Observatory)

奥文斯谷射电天文台

Radio Astronomy Explorer

“射电天文探险者”号卫星

spectral line receiver in radio astronomy

射电天文谱线接收机

sensitivity of radioastronomical receiver

射电天文接收机灵敏度

In none of these respects does optical astronomy have any advantage over radio astronomy.

在所有这些指标上，射电天文并不比光学天文逊色。

the branch of astronomy that detects and studies the radio waves emitted by celestial bodies.

天文学中对天体发射无线电波的侦察与研究的分支。

Measurement method and analysis of electromagnetic environment in radio astronomic observatories

射电天文站电磁环境测量方法及分析

balloon-based radio astronomy

气球观测无线电天文学

high-energy and low-energy gamma-ray astronomy

高能与低能γ射线天文学