旋转开沟机是我国农机科研单位在无产阶级文化大革命的推动下,开门办科研、从本地区生产需要出发,研制出来的一种农田基本建设新型机具。有的已初步定型并安排小批生产,虽然在某些方面还不够理想,但有些方面已超过外国同类产 Rotary ditching machine is our agricultural machinery research institutes under the impetus of the Great Proletarian Cultural Revolution, open the door to do research, starting from the needs of the region’s production, developed a farmland infrastructure of new equipment. Some have been initial shape and arrange small batch production, although not ideal enough in some aspects, but some aspects have surpassed the foreign similar production