估价更换作业机械部件的费用和人工费用的方法是,设备总寿命期间的维修和保养费用为购买机械价格的100%—125%。这种方法是通过比较9种相似类型的机械零配件和人工费用估价出来的,其中包括采伐、运输和筑路机械。每组分别给出在总寿命内的累记曲线,同时还给出了名种费后的参数,则配套费用与人工费用的比率及每年的作业时间。 The method of valuing the cost and labor cost of replacing the mechanical parts is that the maintenance and repair costs during the total equipment life are 100% to 125% of the purchase price of the machinery. This method was evaluated by comparing nine similar types of mechanical parts and labor costs, including harvesting, transport, and road construction machinery. Each group is given a cumulative curve in the total life, and also gives the parameters of the name of the species after the fee, the ratio of supporting costs and labor costs and the annual operating time.