..............page:451-454
AT89S52 based timer design
yang lei; yu fu-sheng; guo mei-jing(school of mechanical and electronic engineering; shandong jinanzhu university; jinan 250101; china)
..............page:463-464,470
..............page:465-470
..............page:455-458,462
..............page:415-419,429
..............page:396-400
..............page:401-405,441
..............page:406-409
..............page:420-424
..............page:377-380,395
..............page:381-385,400
..............page:438-441
..............page:434-437
..............page:448-450
..............page:445-447
..............page:386-390
..............page:391-395
..............page:410-414
..............page:442-444,454
Air distribution of perforated ceiling air supply in small chamber
zhang wen-sheng~1; an da-wei~1; dong rui~2; et al.(1.school of environmental engineering; tianjin university; tianjin 300072; china; 2.school of thermal energy engineering; shandong jianzhu university; jinan 250101; china; 3.institute of blood disease hospital; cams & pumc; tianjin 300020; china)
..............page:430-433
..............page:425-429
..............page:459-462