玉米全膜双垄沟自走直插式精量穴播机设计
戴飞
1
, 杨正
2
, 赵武云
1,
*
, 张锋伟
1
Design of self-propelled direct insert precision hill-seeder of corn with whole plastic-film mulching on double ridges
DAI Fei
1
, YANG Zheng
2
, ZHAO Wu-yun
1,
*
, ZHANG Feng-wei
1
盘形凸轮示意图