“satellite”的概念、定义、翻译、参考文献-科学参考

satellite

Physics

1. (natural satellite) A relatively small natural body that orbits a planet. For example, the earth’s only natural satellite is the moon.

2. (artificial satellite) A man-made spacecraft that orbits the earth, moon, sun, or a planet. Artificial satellites are used for a variety of purposes. Communication satellites are used for relaying telephone, radio, and television signals round the curved surface of the earth (see synchronous orbit). They are of two types: passive satellites reflect signals from one point on the earth’s surface to another; active satellites are able to amplify and retransmit the signals that they pick up. Astronomical satellites are equipped to gather and transmit to earth astronomical information from space, including conditions in the earth’s atmosphere, which is of great value in weather forecasting.

Astronomy

A small body that orbits a larger one, particularly the natural satellites of the planets. A natural satellite is also known informally as a moon. All the planets have at least one natural satellite, except Mercury and Venus. (See Table 2, Appendix.) A spacecraft sent into orbit around the Earth or another body is an artificial satellite.

Space Exploration

Any small body that orbits a larger one.
Natural satellites that orbit planets are called moons. The first artificial satellite, Sputnik 1, was launched into orbit around the Earth by the USSR in 1957. Artificial satellites can transmit data from one place on Earth to another, or from space to Earth. Satellite applications include science, communications, weather forecasting, and military use.
An active satellite is one that transmits signals that return with information. An example was Seasat, which used radar and radio-sensing instruments to monitor the Earth's oceans. A passive satellite does not send out signals, but only records information, such as images, about the target object.
At any time, there are several thousand artificial satellites orbiting the Earth, including active satellites, satellites that have ended their working lives, and discarded sections of rockets. The brightest artificial satellites can be seen by the naked eye. Artificial satellites eventually re-enter the Earth's atmosphere. Usually they burn up by friction, but sometimes debris falls to the Earth's surface, as with Skylab and Salyut 7.

Electronics and Electrical Engineering

An artificial body that is launched from earth to orbit either the earth or another body of the solar system. There are two main classes: information satellites and communications satellites.
Information satellites transmit signals containing many different types of information to earth. Typical uses include the provision of atmospheric and meteorological data, infrared, ultraviolet, gamma- and X-ray studies of celestial objects, surveys of the earth’s shape, surface, and resources, and as navigational aids. Communications satellites receive radiofrequency signals from earth by means of highly directional antennas and return them to another earth location for purposes of long-distance telephony, TV broadcasting, etc.

Geology and Earth Sciences

A minor body orbiting a planet in the solar system. About 180 are known, divided into three general classes. (a) Regular satellites form miniature solar systems and include all the classical major satellites, e.g. the Galilean satellites. (b) Collisional shards are tiny, craggy chunks, probably remnants of larger satellites, e.g. Amalthea, which is embedded in Jupiter’s planetary ring system. (c) Irregular satellites have elongate, highly inclined orbits, mostly far from the planet, suggestive of capture, e.g. the outer satellites of Jupiter. Three bodies, the Earth’s Moon, Triton (orbiting Neptune), and Charon (orbiting Pluto) do not fit into any of the above classes, and each has to be regarded as a unique case. See Appendix I for list of satellite missions.

单词	satellite
释义	satellite Physics 1. (natural satellite) A relatively small natural body that orbits a planet. For example, the earth’s only natural satellite is the moon. 2. (artificial satellite) A man-made spacecraft that orbits the earth, moon, sun, or a planet. Artificial satellites are used for a variety of purposes. Communication satellites are used for relaying telephone, radio, and television signals round the curved surface of the earth (see synchronous orbit). They are of two types: passive satellites reflect signals from one point on the earth’s surface to another; active satellites are able to amplify and retransmit the signals that they pick up. Astronomical satellites are equipped to gather and transmit to earth astronomical information from space, including conditions in the earth’s atmosphere, which is of great value in weather forecasting. Astronomy A small body that orbits a larger one, particularly the natural satellites of the planets. A natural satellite is also known informally as a moon. All the planets have at least one natural satellite, except Mercury and Venus. (See Table 2, Appendix.) A spacecraft sent into orbit around the Earth or another body is an artificial satellite. Space Exploration Any small body that orbits a larger one. Natural satellites that orbit planets are called moons. The first artificial satellite, Sputnik 1, was launched into orbit around the Earth by the USSR in 1957. Artificial satellites can transmit data from one place on Earth to another, or from space to Earth. Satellite applications include science, communications, weather forecasting, and military use. An active satellite is one that transmits signals that return with information. An example was Seasat, which used radar and radio-sensing instruments to monitor the Earth's oceans. A passive satellite does not send out signals, but only records information, such as images, about the target object. At any time, there are several thousand artificial satellites orbiting the Earth, including active satellites, satellites that have ended their working lives, and discarded sections of rockets. The brightest artificial satellites can be seen by the naked eye. Artificial satellites eventually re-enter the Earth's atmosphere. Usually they burn up by friction, but sometimes debris falls to the Earth's surface, as with Skylab and Salyut 7. Electronics and Electrical Engineering An artificial body that is launched from earth to orbit either the earth or another body of the solar system. There are two main classes: information satellites and communications satellites. Information satellites transmit signals containing many different types of information to earth. Typical uses include the provision of atmospheric and meteorological data, infrared, ultraviolet, gamma- and X-ray studies of celestial objects, surveys of the earth’s shape, surface, and resources, and as navigational aids. Communications satellites receive radiofrequency signals from earth by means of highly directional antennas and return them to another earth location for purposes of long-distance telephony, TV broadcasting, etc. Geology and Earth Sciences A minor body orbiting a planet in the solar system. About 180 are known, divided into three general classes. (a) Regular satellites form miniature solar systems and include all the classical major satellites, e.g. the Galilean satellites. (b) Collisional shards are tiny, craggy chunks, probably remnants of larger satellites, e.g. Amalthea, which is embedded in Jupiter’s planetary ring system. (c) Irregular satellites have elongate, highly inclined orbits, mostly far from the planet, suggestive of capture, e.g. the outer satellites of Jupiter. Three bodies, the Earth’s Moon, Triton (orbiting Neptune), and Charon (orbiting Pluto) do not fit into any of the above classes, and each has to be regarded as a unique case. See Appendix I for list of satellite missions.
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