关于stratums的百科

• stratums造句怎么写

• EmergencestratumsareofSinian,Devonian,Permian,Triasandintrusivegranitedikeandcoarse-grainedgranitedike.ItisoneofthestratumswhicharelowerdegreeofexplorationandresearchintheQaidambasin.Themodelstratumsmainlyincludedmiscellaneousfillingsoilsurface,inter...
• 2018-11-0311412