..............page:7,9,13,15,21,23,27,55-56
..............page:24-25,30
Study on Measuring Actual Strata Profile Thickness
liu shu-cai~1; du sheng-xian~1; zhang gui-li~2(1.shandong institute and laboratory of geological sciences; shandong jinan 250013; china; 2.shandong geological survey institute; shandong jinan 250013; china)
..............page:37-38,47