求翻译：因取费基数不同，包括以直接费为计算基数、以人工费和机械费为计算基数和以人工费为计算基数三种情况是什么意思？

Fee of the base, including direct costs for the calculation base, labor costs and machinery costs for the calculation base and labor costs for the three conditions of the calculation base

The base fee, including direct costs to the basis for the calculation, in order to labor and machinery costs calculated for base and to manual calculation of the base figure for 3 case

Because takes spends the cardinal number to be different, including take the flat cost as the computation cardinal number, spends take the labor cost and the machinery as the computation cardinal number and take the labor cost as the computation cardinal number three kind of situations

Because of different base fee, including direct costs for the calculation of the base, to labor and machinery to the basis of calculation and to labor as the basis of calculation of three

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