求翻译：由于重量轻，基础费用降低，总体用料减少，直接成本降低，建设工期短，间接费又可减少，所以综合造价低。是什么意思？

The light weight, the basis of lower costs, the overall reduced use of materials, lower direct costs, short construction period, indirect costs can be reduced, so the lower total cost.

The basis weight, lower costs, reduce overall material used, direct costs, short construction period building, the indirect costs can be reduced, the low cost.

Because the weight is light, the foundation expense reduces, the overall needed materials reduce, the direct cost reduces, the construction time limit for a project is short, the indirect expense may reduce, therefore the comprehensive construction cost is low.

Because of the light weight, the underlying costs, overall material to reduce direct cost reduction, short construction period, overhead can be reduced, so the integrated low cost.