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1.立项理由随着农机保有量的增长,特别是高技术含量的大型农机具的增加,使得在用的农机产品结构发生变化。如果将在用的农机产品结构用图形表示,则表现为传统的农机产品所占比重不断减少,高技术含量的大型农机占有比重不断增加。农机结构的这种变化中,高技术含量的农机产品并不都是新用户购买的,实际上是原来的农机用户将旧机卖掉,购买更高性能的农业装备。同
1. Project reason With the increase of the possession of agricultural machinery, especially the increase of large-scale high-tech agricultural machinery, making changes in the structure of agricultural machinery used. If we use the structure of agricultural products with a graphical representation, the performance of the traditional agricultural machinery products continue to decline in the proportion of high-tech large-scale agricultural machinery occupies a growing share of. In this change of agricultural machinery structure, high-tech agricultural machinery products are not all new users to buy, in fact, the original users of agricultural machinery to sell the old machine, buy more high-performance agricultural equipment. with