stra·tig·ra·phy /strəˈtɪgrəfi/ 地層學,地層中的巖石組成
stra·tig·ra·phy /strəˈtɪgrəfɪ/ 名詞 體層X線照相術,斷層X線照相術
Stra·tig·ra·phy n. That branch of geology which treats of the arrangement and succession of strata. ◄ ►