| 词汇 | example_english_parabolic-antenna |
| 释义 | parabolic antennacollocation in Englishmeanings of parabolicand antennaThese words are often used together. Click on the links below to explore the meanings. Or, see other collocations with antenna. parabolic adjective uk /ˌpær.əˈbɒl.ɪk/ us /ˌper.əˈbɑː.lɪk/ having a type of curve like that made by an object that is thrown up in the air and falls to the ground in a ... See more at parabolic antenna noun uk /ænˈten.ə/ us /ænˈten.ə/ either of a pair of long, thin organs that are found on the heads of insects and crustaceans (= animals with hard outer shells) and are used to ... See more at antenna Examples of parabolic antennaThese examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. In 1979 came the first big parabolicantenna. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. A 12-metre parabolicantenna was used to receive and transmit information to geostationary satellites, which served as the forerunners to modern telecommunication satellites. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. This required the installation of a large parabolicantenna to receive the signals. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. He also built the first parabolicantenna, using a zinc gutter sheet. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. They began to go out of fashion at the end of the 1960s, when types of parabolicantenna with an improved performance became available. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. A 116.8 cm diameter high-gain parabolicantenna was mounted at the top of the frame as well. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The main advantage of a parabolicantenna is that it has high directivity. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. In addition, a 30-foot, gyro-stabilized, computer-oriented, triaxial, parabolicantenna was installed on her afterdeck. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. A two-axis steerable high-gain parabolicantenna was mounted on a boom near one edge of the lander base. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The radar uses an open frame truncated parabolicantenna with a stacked antenna feed. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The radiation pattern of a rotating truncated parabolicantenna for radar fixed pedestal has a fan shaped beam with a vertical gap in coverage. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The satellites carried a parabolicantenna, around 1 meter in diameter, that is associated with this equipment. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. All used a single antenna accomplishing both transmission and reception; the antenna was a large open-frame truncated parabolicantenna, the antenna included a heated de-icing system for extreme conditions. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. This system included a parabolicantenna six feet in diameter that was mechanically aimed in a helical pattern (round and round as well as up and down). From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Large parabolic antennas can produce very narrow beams of a few degrees or less, and often must be aimed with the aid of a boresight. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. They were equipped with powerful on-board transponders, so the size of receiving parabolic antennas of downlink stations was reduced to 4 and 2.5 metres. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. For example, large parabolic antennas ranging from 3 to 100 meters in diameter are necessary to pass on signals to television satellites and space vehicles. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. This applies also for other waves, hence parabolic antennas. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Spoiled parabolic antennas produce a narrow beam in one dimension and a relatively wide beam in the other. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Parabolic antennas have some of the highest gains, that is, they can produce the narrowest beamwidths, of any antenna type. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. Want to learn more? Go to the definition of parabolic Go to the definition of antenna See other collocations with antenna |
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