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单词 low-earth
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low-earth
low-earth adj. Astronautics designating an orbit around the earth that has a maximum altitude of less than 2000 km (about 1200 miles), and the region in which such orbits are contained; (also) of or relating to such an orbit; chiefly in low-earth orbit; cf. low-orbit adj.
ΚΠ
1961 Technol. & Culture 2 124 A problem of major concern for manned flight beyond low earth orbits is that of radiation in space.
1987 New Scientist 5 Mar. 19/3 The rocket was intended to launch 15 tonnes into a low Earth orbit.
2001 N.Y. Times 2 Apr. c4/1 Low-earth satellites use various orbital paths to buzz around the globe at altitudes of 500 to 600 miles.
2008 A. C. Clarke & F. Pohl Last Theorem xxxvi. 235 The solar sailers will be in low earth orbit.
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