一般地说，机械费用是指为完成工程项目任务，所投入的机械设备在使用中发生的各种费用，主要包括：折旧费、大修费、经常修理费、安装拆除及进出场费、人工费、燃料动力费、养路保险费等。可以看出，机械使用费所包含的内容较多，而且在工程成本中也占有一定的比例，所以作为 Generally speaking, the mechanical expenses refer to various expenses incurred during the use of the machinery and equipment invested for the purpose of completing the project. The main expenses include depreciation, overhaul, frequent repairs, installation and demolition, entrance and exit fees, and labor costs. , fuel costs, road maintenance insurance and so on. It can be seen that the mechanical use fee contains more content, and it also occupies a certain proportion in the project cost, so as