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- radio astronomy earth station 射电天文地球站
- The water vapor was found 11.5 billion light years from Earth, using the 100-meter Effelsberg radio telescope at the Max Planck Institute for Radio Astronomy in Leipzig, Germany. 隶属于卜朗克无线电波天文研究院的伊费尔斯堡无线电波天文台,使用反射镜直径达100公尺的无线电波望远镜,在离地球115亿光年之处发现水蒸气。
- Radio astronomy has greatly increased our understanding of the universe. 辐射天文学大大地增进了我们对宇宙的了解。
- 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。
- Is there an earth station, a base for relaying radio signals to and from artifical satellites and interplanetary sapcecraft, in your city? 你们城市有那种地球站吗?就是作为中继向人造卫星和星际飞行器发送的或中继来自这些地方的无线电信号的地面基地?
- The development of the technical infrastructure for radio astronomy through training in techniques. 通过技术训练逐步完善射电天文的技术支撑队伍。
- 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。
- A new science, Radio Astronomy, has emerged, and it is very closely allied to astronomy, astro-physics and physics. 出现了一门新兴学科----无线电天文学,它与天文学、天文物理学和物理学关系密切。
- The mass of one of these suppressive black holes has recently been measured using radio astronomy. 这些有着巨大质量的黑洞,最近利用了射电天文学来测量它们的质量。
- He Baoyu (Aerocraft Design)Directed by Wu JiSynthetic aperture technology in radio astronomy is introduced into microwave radiometer since 1980's. 八十年代以来,为改善微波辐射计性能,人们将射电天文观测中的孔径综合技术引入到微波辐射计设计中,开始了综合孔径辐射计的研究。
- How to inspect the satellite earth stations? 如何核查卫星地球站?
- Foremost among the techniques used to study dense interstellar region is molecular radio astronomy, a relatively new and repidly developing interdisciplinary science. 在用来研究高密星际区域的技术中,最重要的是分子射电天文学;这是一门较新的发展迅速的边缘科学。
- Foremost among the techniques used to study dense interstellar region is molecular radio astronomy, a relatively new and rapidly developing interdisciplinary science. 在用来研究高密星际区域的技术中,最重要的是分子射电天文学;这是一门较新的发展迅速的边缘科学。
- In a TDMA system, a discrete group of digits transmitted by a single earth station. 在时分多址系统中,由地面站传送的一个分立数字组。
- The ultimate success of the project will be achieved if the next forefront radio astronomy project can be conceived, planned, and built entirely in China. 如果下一个前沿的射电天文项目能够完全在中国构思、计划和实现,那才是伙伴小组最后的成功。
- Mark Adams, a spokesman for the National Radio Astronomy Observatory, says that his institute has not yet been told how much money it must raise to keep the VLBA open. 国家射电天文台的发言人,表示他的协会还没有被告知要提高多少钱才能维持VLBA运行。
- Earth station A parabolic antenna and associated electronics for receiving and transmitting satellite signals. 接收和发射卫星信号的一个碟形天线和附属电子工程。
- Two decades later, Joshua Barnes of the University of Hawaii and John Hibbard of the National Radio Astronomy Observatory in Virginia created a detailed model of the colliding Mice that greatly enhanced the work of the Toomre brothers. 二十年之后,夏威夷大学的约书亚·巴尼斯和弗吉尼亚国家射电大文学天文台的约翰·哈比德创造了一个撞击的“老鼠”的详细模型,这大大地推进了图木尔兄弟的工作。
- Uplink - The signal that carries information from an earth station source up to a satellite. 上行-从地面原发站传到卫星上的节目信号。
- Two decades later,Joshua Barnes of the University of Hawaii and John Hibbard of the National Radio Astronomy Observatory in Virginia created a detailed model of the colliding Mice that greatly enhanced the work of the Toomre brothers. 二十年之后,夏威夷大学的约书亚·巴尼斯和弗吉尼亚国家射电大文学天文台的约翰·哈比德创造了一个撞击的“老鼠”的详细模型,这大大地推进了图木尔兄弟的工作。