说明了槽轮的螺旋角度和转速对排种性能的影响。
The spiral horn of sheave and rotation speed had influence on sowing performance.
影响气吸式排种器排种性能的因素很多，而决定吸力的吸室真空度是很重要的因素。
There are many factors affecting the characteristics of the suction-type metering device for precision drill. The important one is the vacuum degree or suction power of the vacuum chamber.
研究包衣稻种物料特性对排种性能的影响，以此为基础确定包衣水稻直播排种器的结构参数。
Researched the influence of rice pellet physical characteristic on seeding, based on which, seeding metering device structure parameter of rice pellet direct seeding was confirmed.
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