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

单词	observation twilight
释义	observation twilight observation twilight That part of the twilight period during which the horizon may be observed as a sharply defined line and the navigational stars may be seen. The light diffused during this period. For computation purposes, this twilight begins or ends when the middle of the sun is at a point about 10° below the horizon. See civil twilight and nautical twilight.
随便看	seiu seiurus seiurus aurocapilla seiurus aurocapillus seiv seive seiwg sei whale sei whales seixas, gershom mendes seiyukai seizable seize seized seized computer evidence recovery specialist seized her with seized him with seized it with seizedly seized me with seized on seized one with seized onto seized somebody with seized someone with

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