perigee [ˈperɪdʒi:]以下由轻松背单词网站提供
单词级别第12级基本释义n.近地点英英释义periapsis in Earth orbit; the point in its orbit where a satellite is nearest to the Earth参考例句The Moon reaches its absolute perigee once a year. 月球每年有一次达到它的绝对近地点。Once the satellite reaches perigee, it will eject a small probe which enter the planet's atmosphere. 当人造卫星达到近地点时,就会发射一根小探针,这根探针将进入行星的大气层。 推荐阅读 |