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双四连杆仿形机构是把２个四连杆并联使用，它把单四连杆的线仿形扩大为面仿形，从根本上解决了宽台栽培农艺中所必须完成的一个重要环节，即当犁铧耕起土壤后台面的形成与镇压问题。
Double-quadruple-link copying mechanism is the use of two four-link parallel, it is a single four-link profile to expand the surface profiling, fundamentally solve the broad platform for cultivation of agronomic must be completed an important part , That is, when plowing plow soil plowing the formation and suppression of the backstage problem.