通过对水平圆盘式排种器清种装置的改进，研制了一种适合丸粒化玉米种子精播水平圆盘式排种器清种装置。
The cleaning device of the horizontal disc type seeder was improved and a new kind of cleaning device suitable for pelleted corn seeds was designed.
利用丸粒化玉米种子干燥试验装置，研究了风温、风速、加热时间对丸粒化玉米种子干燥速率的影响。
The effects of temperature, velocity and time of heating on the rate of drying pelleted corn seeds were tested by means of the drying tester.
同时，采用正交试验方法，对丸粒化玉米种子进行了三因素三水平干燥试验，并建立了干燥特性曲线，分析了各试验因素对干燥特性的影响。
The drying property curve of pelleted corn seeds was established with three-factor and three-level orthogonal design method. The effects of different factors on the drying properties were analyzed.
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