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为了满足深翻改土、增加产量的需要,大城县农机局、农机修造厂、农机具研究所组成的三结合小组,于一九七二年先后试制了牵引单铧深耕犁(图1)和牵引三铧深耕犁(图2)。单铧深耕犁经过县内召开的现场会试耕,与会者反映良好,认为基本上达到了改造沙荒、改造盐碱的要求,现已生产。三铧深耕犁经试验效果良好,已生产,在县内试用。
In order to meet the needs of deep soil improvement and increased production, the three-in-one group composed of the Agricultural Machinery Bureau of Aicheng County, the farm machinery repair factory and the farm machinery research institute trial-produced a single deep drawing plow (Figure 1) Tractor three-Hua deep plowing (Figure 2). Single-plow deep plow after the trial held in the county will be the scene, the participants reflect the good, that basically reached the transformation of desert wasteland, salinization requirements, is now production. Sowing plow deep plow test results are good, has been produced in the county trial.