stratums的精選

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用“stratums”造句大全，stratums造句

用“stratums”造句大全，stratums造句

2018-11-03
EmergencestratumsareofSinian,Devonian,Permian,Triasandintrusivegranitedikeandcoarse-grainedgranitedike.ItisoneofthestratumswhicharelowerdegreeofexplorationandresearchintheQaidambasin.Themodelstratumsm...