英语词汇“Molniya orbit”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

Molniya orbit

/ˈmɒlnɪə ˌɔːbɪt/ /mɒlˈniː(j)ə ˌɔːbɪt/

Astronautics

noun

A highly elliptical orbit inclined at an angle of about 65° to the plane of the equator, such as is occupied by the Russian Molniya satellites.

The orbits are such that the satellite passes close to the earth near the South Pole, travelling fast; and at a great distance from the earth near the North Pole, travelling slowly. This results in the satellite spending most of each 12-hour orbit over the northern hemisphere, making it more useful for northern hemisphere applications..

Origin

1980s. From Molniya, the name of communication satellites launched under a Russian space programme, and of the programme itself (from Russian molnija lightning) + orbit.

单词	Molniya orbit
释义	Molniya orbit /ˈmɒlnɪə ˌɔːbɪt/ /mɒlˈniː(j)ə ˌɔːbɪt/ Astronautics noun A highly elliptical orbit inclined at an angle of about 65° to the plane of the equator, such as is occupied by the Russian Molniya satellites. The orbits are such that the satellite passes close to the earth near the South Pole, travelling fast; and at a great distance from the earth near the North Pole, travelling slowly. This results in the satellite spending most of each 12-hour orbit over the northern hemisphere, making it more useful for northern hemisphere applications.. Origin 1980s. From Molniya, the name of communication satellites launched under a Russian space programme, and of the programme itself (from Russian molnija lightning) + orbit.
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