供水保证率

大型输水工程中，为了保证输水的水质和很高的供水保证率，目前世界上采用在隧洞内敷设大直径预应力钢筒混凝土管（PCCP）的先进输水技术。

In large-scale water transport engineering , the advanced technique of laying prestressed concrete cylinder pipe ( PCCP ) in tunnel is adopted in world now in order to insure water quality and high water supplying rate .

同时，受频繁的旱涝灾害、日益严重的水污染和大面积的地下水位下降的影响，农业供水保证率将进一步降低。

Third , the water supply guarantee will be lowered resulted from frequent drought and flood , severe water pollution and extensive groundwater level decline .

本论文主要针对关中灌区面临的各种水资源问题，如水资源匮乏，水资源调蓄能力差，供水保证率低以及旱灾频繁出现等特点，对关中灌区主要水源工程实行联网调水。

Aiming at the main water resources problems of GuanZhong irrigation area , such as water resources scarcity , operation ability worse , water supply guarantee ratio low and drought high frequency , combining with the main water conservancy of GuanZhong irrigation area to operate and distribute water resources .

本文的第一部分论述了年调节水库供水的概率或保证率。

In the first part , this paper discusses the probability of the annual flow regulation .

火电厂供水系统要求具备很高的供水保证率，输水系统的安全性直接影响到发电厂的安全运行，而保证供水稳定的关键环节则是加压泵的运行情况。

Thermal power plant water supply system requirements to ensure the water supply with a high rate of water security of the system will directly affect the safe operation of power plants , while ensuring a stable water supply is a key link in the main pressure pump operating conditions .