| 词汇 | perigee |
| 释义 | perigee noun[ C or U ] physics specializeduk /ˈper.ɪ.dʒiː/ us /ˈper.ɪ.dʒiː/ the point in the orbit(= curved path) of the moon or a satellite when it it is closest to the earth : （月亮或人造卫星的）近地点 The moon will be at perigee, its closest to the earth, on the 8th of the month.月球将在本月8日处于近地点，离地球最近。 Compare apogeespecialized Physics: particular theories & concepts aphelion azimuth conservation cryogenics dark matter Doppler effect emergence emergent kinetics momentum perihelion Planck's constant quantum refraction relativistic relativity spatio-temporal spring constant time dilation wormhole Examples of perigeeperigee It does so within the limits established by the combined eccentric and epicyclical apogees and their combined perigees. There has been the need to develop the perigee apogee stage, which adds further costs. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 After being secured in the shuttle cargo bay, a new perigee kick motor was installed. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. With this engine firing, the spacecraft's apogee was raised to 28,825 km, with a perigee of 252 km. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. An argument of perigee of 270 degrees places apogee at the northernmost point of the orbit. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The burn raised both the apogee and perigee of the shuttle's orbit by 1mi km. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Explorer 3 was placed in an orbit with a perigee of 186 kilometers and an apogee of 2799 kilometers having a period of 115.7 minutes. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. It will be the fourth longest eclipse of the 21st century with a magnitude of 1.0774 occurring just one hour before perigee. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. This burn decreases the orbit's perigee to about 15 km, some 500 km ahead of the lunar south pole, half an orbit later. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. An argument of perigee of 90 degrees would likewise serve the high southern latitudes. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The deorbit burn decelerated the orbiter by about 211 miles per hour, enough to lower its orbital perigee into the upper atmosphere. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. It was operated in an orbit with a perigee of, an apogee of, 48.4 degrees of inclination, and an orbital period of 90.5 minutes. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Its orbit had a perigee of, an apogee of, 70 degrees of inclination, and an orbital period of 88.8 minutes. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The argument of perigee is such that apogee occurs on or near the equator. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. It was operated in an orbit with a perigee of, an apogee of, 48.4 degrees of inclination, and an orbital period of 94.6 minutes. 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. |
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