【摘要】 作为农业生产主要动力的拖拉机,其更新关键依据就是经济寿命。一个再好的拖拉机经济寿命计算模型,如果没有真实、可靠的数据,也是枉然。因此,有必要对拖拉机经济寿命计算数据的获取及处理进行探讨,并以数理统计的观点介绍了拖拉机主要技术经济指标的获取及处理方法,建立了数据获取及数据处理模型,为拖拉机经济寿命计算和效益分析奠定基础。更多还原

【Abstract】 As main power of agricultural prodution,tractor is renewed based on its economical life. A good calculating model of tractor economical life is no use,if there is no real,reliable data. So it’s necessary to discuss the acquirement and processing of tractor economical life calculating data. The article introduced the acquirement and processing of tractor main technical economical indexes,and set up the model for acquiring and processing data and established the basement for calculating and profit analysis of tractor economical life.更多还原