求翻译：间接费用通常包括管理人员的工资、办公费等。从成本会计上，我们把间接费用按照工程的施工时间进行直接分摊。在一定的生产规模内，活动的作业时间越短，分摊的间接费用也越少。因此，我们有以下时间-费用函数：Y = f1(t) + f2(t) ；其中，Y为总费用；f1(t)为直接费用；f2(t)为间接费用。是什么意思？

Indirect costs typically include management salaries, office expenses. Cost accounting, indirect costs in accordance with the project construction time directly assessed. In a certain production scale, the activities of the shorter operating time, indirect apportionment, is also less. Therefore, we

Indirect costs are usually include the management of staff salaries, expense accounts, and so on. From the cost accounting, the indirect costs in accordance with our construction time for direct assessment. At a certain scale, the less time the job sharing, the indirect costs less. Therefore, we hav

The overheads cost usually includes administrative personnel's wages, the administrative expenses and so on.From cost accounting, we carry on the overheads cost according to the project construction time share directly.In certain scale of production, the active work time is shorter, the overheads co

Indirect costs usually include Manager salaries, office costs, and so on. From the cost accounting, our direct overhead costs according to the project's construction time sharing. Within a certain production scale, shorter working time of activity, share of indirect costs less. Therefore, we have th

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