农业机械是指运用先进适用的农业机械装备农业,改善农业生产经营条件,不断提高农业生产技术水平和经济效益、生态效益的过程。在农村地区要想构建现代农业,不管是在农业生产的产前、产中还是产后都离不开农业机械,农业机械化降低了农民群众的劳动强度,给农业生产带来了极大的便利。但是,农业机械是一种机械含量高,结构复杂的农业生产工具,其工作环境存在较大的差异性,多数故障都是在日常的维护和保养过程中处理不到位造成的。国家对购买农 Agricultural machinery refers to the process of using advanced and applicable agricultural machinery to equip agriculture, improving conditions of agricultural production and management, continuously improving the technical level, economic benefits and ecological benefits of agricultural production. In order to construct modern agriculture in rural areas, agricultural mechanization has reduced the labor intensity of the peasant masses and brought tremendous convenience to agricultural production, whether in the prenatal, middle or postnatal period of agricultural production. However, agricultural machinery is a kind of agricultural production tool with high mechanical content and complex structure. There is a big difference in its working environment. Most of the failures are caused by inadequate handling during routine maintenance and repair. National purchase of agriculture