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精少量播种和种肥分层深施是国内推广的农业新技术,本设计采用新型专利工作部件,使2BF—7型种肥正位分层谷物精少量播种机成为这两项新技术的载体。
Fine sowing and deep layering of seed fertilizer is the domestic promotion of new agricultural technology, the design uses a new type of patented working parts, so that 2BF-7 type of fertilizer stratified grain precision sowing machine has become the carrier of these two new technologies .