单词 | lunar window |
释义 | > as lemmaslunar window lunar window n. a launch window for a mission to the moon. ΘΚΠ society > travel > air or space travel > space flight > [noun] > a space shot or flight > launching of spacecraft > period suitable for > for flight to moon lunar window1969 1969 Guardian 15 Jan. 18/2 A lunar window exists for Russia at the moment. 1970 N. Armstrong et al. First on Moon ii. 33 The time of launch..had been chosen with great care. The date and the hour had been fixed to take full advantage of the so-called ‘lunar window’. < as lemmas |
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