...tions in fractured rocks using R tree indexing - 豆丁网
graph th eory,L iu and W ang trans lated the 3 D fr acture netw ork t o the non—co nnected graph ,took th e grap hic data stru ctu re in co mp uter to express th e 3 D fr acture netwo rk data,and dev elop ed a computer program for ...