东风-12型手扶拖拉机离合器主要参数校核及结构工艺性研究
동풍-12형수부타랍궤리합기주요삼수교핵급결구공예성연구
Main Parameters and Structural Machinability of the Clutch of Dongfeng-12 Walking Tractor
저자의 최근 논문