| 词汇 | example_english_radar-beam |
| 释义 | radar beamcollocation in Englishmeanings of radarand beamThese words are often used together. Click on the links below to explore the meanings. Or, see other collocations with radar or beam. radar noun[U] uk /ˈreɪ.dɑːr/ us /ˈreɪ.dɑːr/ a system that uses radio waves to find the position of objects that cannot ... See more at radar beam noun[C] uk /biːm/ us /biːm/ a line of light that shines from a ... See more at beam Examples of radar beamThese 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. Signals were recorded from targets passing through the radarbeam at altitudes ranging between 150 and 1050 m above ground level. This can be an advantage because it can get in under the radarbeam when attacking a target. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 One homes on a target located by radar and the other homes on a radarbeam. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 And of course no one stands in front of a radarbeam or rays from a microwave source. From Europarl Parallel Corpus - English When the reflector is moving at right angle to the radarbeam, it has no relative velocity. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The inherent disadvantage of the radarbeam riding system is that the beam spreads as it travels outward from the broadcaster. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. A laser beam can be made much narrower than a radarbeam while not increasing the size of the broadcaster. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. It can also track the fastest vehicle in the selected radarbeam, front or rear. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. This results in a map-like picture of the area covered by the radarbeam. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Operators would find a target in the radarbeam and then moving the antenna to keep it centered. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. However, some situations allow a multiple-reflected radarbeam to be received by the radar antenna. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. A radarbeam scattering off electrons in the ionospheric plasma creates an incoherent scatter return. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The half split method is computed by recording the azimuth of the first and last replies from the aircraft, as the radarbeam sweeps past its position. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. In some situations, the radarbeam is fired at the moving car as it approaches, in which case each successive wave travels a lesser distance, decreasing the wavelength. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. It occurs when fixed objects close to the transmittersuch as buildings, trees, or terrain (hills, ocean swells and waves) obstruct a radarbeam and produce echoes. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. A radarbeam is fired at a moving target e.g. a motor car, as police use radar to detect speeding motorists as it approaches or recedes from the radar source. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. However, since the pressure and content in water vapor of the atmosphere varies with height, the path used by the radarbeam is refracted by the change in density. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. It was sent up attached to a balloon and tracked by radar, since radar beams were reflected by the object. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. This causes the water molecule dipole to be oriented in that direction; so, radar beams are, generally, polarized horizontally in order to receive the maximal signal reflection. 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 radar Go to the definition of beam See other collocations with radar See other collocations with beam |
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