求翻译：太阳能光伏发电普遍应用于免开凿路面，无需预先拉线的城市户外公用设施上，环保、节能且成本低是什么意思？

Commonly used in solar photovoltaic cut-free surface, pull the city without prior outdoor public facilities, environmental protection, energy saving and low cost

Solar PV systems generally applied to avoid sinking line road, do not have to pre-urban outdoor facilities, environmental protection, energy efficient and low-cost

The solar energy light bends down the electricity generation to apply generally in exempts opens cutting the road surface, does not need in advance in the back guy city outdoors public facility, the environmental protection, the energy conservation also the cost are low

Solar photovoltaic power generally applies to avoid sinking pavement, no activation line of outdoor public facilities, environmental protection, energy saving and low cost

Solar energy solar cell is generally applied to avoiding cutting the road surface, does not need to draw at the outdoor public utility of city of the thread in advance, environment-friendly, save energy of and the cost is low