| 1. | Small hoist arranges rope device automatically design 棉花排种器的现状和发展趋势 |
| 2. | Experimental study on a new type seed meter 新型气压式精密排种器的试验研究 |
| 3. | Design of a new type double - row vacuum seed meter 新型高速气吸式双条精密排种器设计研究 |
| 4. | Experimental study on 2qxp - 1 type suction - seed metering device 1型气吸式排种器的初步试验 |
| 5. | Study on row sowing device with spiral sheave 螺旋槽轮式排种器的研究 |
| 6. | 3 . bench testing on the new precision metering device 三、对所研制的排种器进行了试验研究。 |
| 7. | Status about onion planting and its harvesting machines 精密播种技术及磁吸滚筒式穴盘排种器的研究 |
| 8. | Computer simulation of seed - injuring on wheat precision seedmeter 小麦精密排种器伤种的计算机模拟 |
| 9. | Status quo and developing direction of cottonseed metering device 棉花播种机排种器的现状和发展趋势 |
| 10. | Design and experiment of four rows seed - metering device for vegetable 针孔气力式蔬菜排种器的设计与试验 |