| 1. | Controller for seed metering device used in precision drill
精密播种机排种自动控制装置 |
| 2. | Experimental study on 2qxp - 1 type suction - seed metering device
1型气吸式排种器的初步试验 |
| 3. | Present situation and developing trend of the cotton seed metering device
倾斜外槽轮上排种式排种器的设计 |
| 4. | Experimental research of de - rowing qualification about 2qxp - 1 , type two - row suction seed metering device
1型双条气吸式排种器分条性试验 |
| 5. | Computerized simulation of working process of seed metering device for 2bqm - 2 plastic film mulch pneumatic precision planter
气吸式膜上精量播种装置排种过程的仿真研究 |
| 6. | Such contents were introduced as establish ment of analysis model of precision seed metering devices , seeds generation , neighborhood search & contact detection , data transfer and software integration , etc .
介绍了精密排种器离散元法分析模型的建立、种子的生成、邻居搜索与接触判定、数据传递及软件集成方法。 |
| 7. | Based on this method , the integration of cad software and dem analyzing software was implemented for performance of agricultural machine ' s working parts by self - development , thereby an integrated analyzing and designing system was developed for precision seed metering devices of planters
在此基础上实现了计算机辅助设计软件与离散元法性能分析软件的集成，由此开发出了一种播种机精密排种器的集成分析设计系统。 |
| 8. | Besides , according to the understanding of operational mechanism of the combined studded feed roller seed metering device , the author has formulated a mathematical equation to calculate the thickness of seed tugged by the studded feed roller and analyzed the factors to affect the thickness
对钉轮组合式排种器工作机理进行研究，建立了计算钉轮组合式排种器的拖带层厚度的数学表达式，分析了影响拖带层厚度有关因素。 |
| 9. | In order to enhance the sufficient effect and the metering quantity of suction seed metering device , the regulative keep - off shade of seed room and the appropriate mechanism structure were designed on the basis of analyzing the structure and basic principle of suction seed metering device
摘要为了提高气吸式排种器的充种效果及排种质量，在分析气吸式排种器结构和基本工作原理的基础上，设计了充种室种面调节挡帘，并改进了充种室结构。 |
| 10. | The author has made a study of the combined studded feed roller seed metering device on the 2bm - 9 model no - till planter made in canada and conducted a contrast test to the standard fluted feed , fine fluted feed and the combined studded feed roller seed metering devices for the analysis of performance , characteristics and application of them based on the relevant state standard and agronomic technical requirement
因此，通过对钉轮组合式排种器、标准外槽轮式排种器和小槽轮式排种器做各种粒型种子的排种性能对比试验，参照有关国家标准和农业技术要求对三种排种装置的性能、特点、适用范围进行分析。 |
