..............page:24-25,30
A survey of present situation of rural human resources in Shijiazhuang
zhao xu-yang1; wang cui-ling2; liu jian-zhou3; liu shu2(1.environmental science research institute; shijiazhuang college; shijiazhuang 050035; china; 2.shijiazhuang vocational technology institute; shijiazhuang 050081; china; 3.shijiazhuang local chronicles office; shijiazhuang 050061; china)
..............page:38-41,56
..............page:67-71,96
..............page:77-79,89
Teaching on dielectric
li jiang-fen(college of physics & electronic engineering; central university for nationalities; beijing 100081; china)
..............page:1-3
..............page:4-8,21