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RT @SpringerOpen: Acid solution decreases the compressional wave velocity of sandstone from the #Yungang Grottoes, Datong, China #HeritageS…
RT @SpringerOpen: Acid solution decreases the compressional wave velocity of sandstone from the #Yungang Grottoes, Datong, China #HeritageS…
Acid solution decreases the compressional wave velocity of sandstone from the #Yungang Grottoes, Datong, China #HeritageScience https://t.co/MVHsSgCvM5 https://t.co/hB6StkbCWP