英语词汇“aalen stage”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	aalen stage
释义	Aalen Stage Aalen Stage the bottom layer of the Middle Jurassic System, named after the city of Aalen in the southwest part of the Federal Republic of Germany. It was isolated by the Swiss geologist and stratigrapher Meyer-Eimar in 1864. In a typical cross section it is represented by black marl with Harpoceras opalinum and ferruginous oolites with Harpoceras murchisonae. It is widespread in the geosyncline of the Tethys Sea in the Alps, the Caucasus, and other mountain structures.
随便看	initial mode identification initial modeling step initial modification interface initial modification request initial national demand out-turn initial national response plan initial navy stock initialness initial no growth peritonitis initial non-advocate review initial nuclear radiation initial nuclear safety inspection initial object initial occlusal contact pattern initial offering initial officer training initial officer training course initial only initial operating capability initial operating capability date initial operating experience initial operating facility initial operating report initial operating sector initial operational assessment

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Aalen Stage