求翻译：因凌海地区砂砾资源枯竭，交通流量强，车辆荷载大，故将商业路原设计30CM水泥稳定砂砾变更为40CM水泥稳定碎石，增加造价为173万元是什么意思？

Yin Linghai regional gravel resource depletion, traffic intensity, vehicle load large, so the original design of the commercial road changed to 30cm 40cm cement stabilized sand cement stabilized crushed stone, increase the cost of 1.73 million yuan

正在翻译，请等待...

Because insults Haiti area gravel resources depletion, traffic flow, the vehicles load is big, therefore the commercial road original design 30CM cement stabilization gravel change is the 40CM cement stabilization crushed stone, increases the construction cost is 1,730,000 Yuan

Linghai gravel resource depletion, strong traffic, vehicle loading, so that the commercial road, to the design changed to 30CM of cement stabilized gravel 40CM cement-stabilized macadam, increased cost $ 1.73 million