Each shifting speed and shifting arrangement are determined for directing the design of a new production of tractor or for the improvement of the design.
本文对拖拉机新产品设计或改进设计时如何合理地确定各档速度和档位排列顺序有一定的指导作用。
2
As main power of agricultural production, tractor is renewed based on its economical life.
作为农业生产主要动力的拖拉机，其更新的关键依据就是经济寿命。
3
The difference of six-point test method is discussed between tractor PTO and engine, and the reason of the difference is analysed. This will benefit the design and production of tractor and engine.