FAST能接收来自宇宙的微弱信号、观测银河及其他星系的中性氢(survey neutral hydrogen in the Milky Way and other galaxies)、探测新的银河系以及外银河系脉冲星(detect new galactic and extragalactic pulsars)、检测引力波(search for gravitational waves)、找寻外星生命可能存在的地方(find out where extraterrestrial life might exist)、探测暗能量(detect dark energy)、帮助我们理解星系演化(help us understand the evolution of galaxies)。
射电望远镜(radio telescope)是观测宇宙天体的重要工具之一。哈勃等光学望远镜(optical telescope)接收的是可见光(visible-light),而射电望远镜接收的是肉眼看不到的射电波(radio waves invisible to the naked eye)。在最近的一次试观测(trial observation)中,FAST接收到了1351光年外一颗脉冲星发出的一组高质量电磁波(the telescope has received a set of high-quality electromagnetic waves sent from a pulsar 1,351 light years away),观测链路已经连通。
[相关词汇]
天文望远镜 astronomical telescope
双筒望远镜 binoculars
天文台 (astronomical) observatory
天体 celestial body
彗星 comet
小行星 asteroid
流星雨 meteor shower
2. 禁酒令
prohibition order for alcoholic beverage
请看例句:
The Xinjiang Uygur autonomous region government recently issued a prohibition order for alcoholic beverages at official receptions.
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★ “新丝绸之路”
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2020-09-15
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