..............page:289-290,294
PDM System Development for Product Conceptual Design
yang bo 1; sun hongwei 2; huang kezheng 3 (1.school of mechanical engineering; 2.school of science; jinan university jinan 250022; 3.school of mechanical engineering; shandong univercity; jinan 250061; china)
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Study on Improved Decision Tree
teng hao 1; zhao guoyi 2; han baosheng 2 (1. school of information science and engineering; 2. section of state asset; jinan university; jinan 250022; china)
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