摘要
城市居民饮用水占生活用水的比例很小。设置单独供水管网将节约大量资金。以某市为例,进行经济效益分析可知,当采用利率最高的全部贷款方式时,其资金回收期只有2.18年;其差额经济效益费用比可达到7。说明分设管网的经济效果要比统一供水优越,社会效益显著。
The drinking-water of the citizens takes a very small proportion in the total quantity of the water used in life. Designing a single water-supply network will save a lot of money. Take a city for example, The balance of the economic benefit it 7, which shows that the separate network has a better water-supply and more economic benefits than that of the common one.
