tractor traction distance 拖拉机牵引的距离 ; 拖拉机牵引距离
tractor traction 拖拉机牵引
net traction coefficient of tractor [农机] 拖拉机牵引力系数
traction efficiency of tractor 拖拉机牵引效率
Pictured is a 1917 Case traction engine, which was the world's first tractor model.
图为1917年为例牵引引擎，这是世界上第一个拖拉机模型。
A lot of research work has been done on the improvement of small wheel tractor traction performance in recent years.
近几十年来，国内外许多学者、专家对如何提高拖拉机的牵引附着性能作了大量的研究，取得了较好的效果。
The tractor uses our company unique fluctuation technology, the work is steady, the reliability is good, the force of traction is big.
牵引机采用我伺独特升降技术，工作平稳，可靠性好，牵引力大。
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