An object oriented functional language
zhao dong fan 1; li wei 1; zhang yang 2 (1 dept.of computer eng.; changchun post and telecommun.inst.; changchun 130012; china 2 jilin province electric power bureau; changchun 130021; china)
..............page:21-28
..............page:8-11,15
..............page:43-46,50
Design of a sewage flow measurement system
zhang li ying 1; yu fu hong 1; chen da wei 2 (1 electric college of chanchun university; changchun 130022; china; 2 preventive medicine school of bethune medical university; changchun 130021; china)
..............page:47-50
A digital voice recorder
yang xu 1; song shi long 2 (1 sixth experiment factory of post and telecomunication; changchun 130012; china; 2 agricultural bank of china changchun administrative cadres college changchun 130051; china)
..............page:66-69