..............page:19-21,33
Digital Video Compress
han baocun (high and new techonology service company; liaocheng teachers university; liaochang252059)
..............page:30-33
..............page:9-11,18
..............page:12-14,18
The Biological Function of Selenium
song xingmin 1) xu henglong 2) zhang shuguang 1) ( 1) department of equipment; liaocheng teachers university; liaocheng 252059; 2) department of biology)
..............page:34-38,44
..............page:25-27,33
..............page:48-51,55
..............page:28-29,33