英语词汇“begin morning civil 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	begin morning civil twilight
释义	begin morning civil twilight begin morning civil twilight The period of time at which the sun is halfway between beginning morning and nautical twilight and sunrise, when there is enough light to see objects clearly with the unaided eye. At this time, light intensification devices are no longer effective, and the sun is six degrees below the eastern horizon. Also called BMCT.
随便看	homoiotherms homoiothermy homoiotypic tumor homoiotypic tumor, homologous tumor homoiousian homoiousianism homoiousians homoiousis homoistela homojunction bipolar transistor homojunction interfacial workfunction internal photoemission homokaryon homokaryosis homokaryotic homokaryotype homokeratoplasty homoki nagy, istvan homoki nagy, istván homolateral homolecithal homolecithal egg homolecithal eggs homolipids homolle, theophile homolle, théophile

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