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在旋耕机的基础上，研制了旋耕、开沟两用机⒚就该机的运动学、动力学、作业质量、经济效益作了分析和研究⒚
On the basis of rotary tiller, developed rotary tillage, ditching dual-purpose machine ⒚ on the kinematics, dynamics, operating quality, economic benefits were analyzed and studied ⒚