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对于不同的玉米种子，以重播率最小为目标对铲式玉米精密播种机的垂直倾角β、水平倾角γ及播种速度ｖ三个参数进行了计算机辅助优化设计。根据优化计算结果，设计了铲式玉米精密播种施肥机。
For different corn seeds, the three parameters of vertical inclination β, horizontal inclination γ and sowing speed v of the shovel corn precision seeder were optimized by computer aided design with the minimum replay rate. According to the results of optimization calculation, a shovel corn precision sowing fertilizer machine was designed.