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随着农业机械化事业的发展,农机具的种类越来越多。为了减轻社队购买农业机械的负担,降低农业生产成本,省和有关地、县农机科研单位于1977年研制成功2BT—3/4型通用机架,配带通用播种部件。1978
With the development of agricultural mechanization, more and more types of agricultural machinery. In order to reduce the burden on communes and communes to purchase farm machinery and reduce the cost of agricultural production, the provincial and related prefectural and county agricultural research institutes successfully developed the 2BT-3/4 type universal racks in 1977 with universal seeding parts. 1978