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.
为了改善水稻垂直圆盘气吸式排种器的排种性能，找出影响其排种性能的关键因素，按照国标GB-6973-86《单粒（精密）播种机试验方法》中排种指标的计算方法来衡量排种性能。
To improve the rice vertical disk seed sowing device function, find out affect sow key factor. According to the country GB-6973-86to measures the sowing seed function.
为了改善水稻垂直圆盘气吸式排种器的排种性能，找出影响其排种性能的关键因素，按照国标GB-6973-86《单粒（精密）播种机试验方法》中排种指标的计算方法来衡量排种性能。
To improve the rice vertical disk seed sowing device function, find out affect sow key factor. According to the country GB-6973-86to measures the sowing seed function.
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