土壤全方位振动深松
Soil deeply loosening after vibration
soil omni-directional vibration deep loose
振动深松机的研究设计
Research and Design of Vibrating Subsoiler
振动深松旋耕
oscillating subsoiling and rototilling-tillage
振动深松的试验研究
Experimental Study on Vibrating Subsoiling
双深松耕作技术
double deep plough technology
深松中耕
deep loosening cultivation
深松免耕播种
Subsoiling and no-till planting
深松机模态试验研究
Modal Experiment about Subsoiler