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与东方红-75拖拉机配套的轻型圆盘耙,是建国初期从苏联引进的PY-3.4型41片耙,由连接器并联两至三台作业,这种耙不仅制造工艺性差,而且使用保养均
The light disc harrow that is matched with Dongfanghong-75 tractor is a PY-3.4 41-type harrow that was introduced from the Soviet Union in the early days of the founding of the People’s Republic of China. The harrow is manufactured by connecting two to three workstations in parallel. This harrow not only has poor manufacturing process but also uses maintenance