目次
1绪论.............................................................1
1.1研究背景与意义..............................................1
1.2研究现状....................................................2
2勺链式大蒜播种机关键部件设计.....................................6
2.1播种机结构组成与工作原理....................................6
2.2排种器结构组成与工作原理....................................7
2.3关键部件设计................................................8
2.4取种勺参数设计.................
勺链式大蒜播种机关键部件设计-14053字.pdf