dry tilling tractor
... dry sweet potato 红薯干 dry tilling tractor 旱地拖拉机 dry vacuum airpump 干式真气氛泵 ...
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表明小型轮式拖拉机叶轮与胶轮并装可提高旱地作业，特别是重负荷作业时的牵引附着性能。
So small tractors fitted with iron wheel with lugs can improve tractive and appendiculate performance of tractor in dry land.
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