供水

As for the severity of the surface water pollution, water ecological balance was break and aquatic community had altered, tolerance species such as Chironomid larvae and Limnodrilus increased a lot in the water.

在我国，由于地表水污染严重，原有的水生生态平衡遭到破坏，摇蚊幼虫、水蚯蚓等耐污种类数量猛增，导致以这类水体作为供水水源时，出现水生动物污染城市供水系统的问题。

Contingency reserve and the establishment of a reserve management system, preparation of contingency plans for water supply, and improving urban water supply guarantee rate.

建立枯水期及连续枯水期应急管理制度，编制供水应急预案，提高城市供水保证率。

Through the connectivity analysis and the continuity equation solution, the node flows and node water heads can be obt...

为供水管网的抗震设计、城市供水系统的抗震能力预测、提高震后救灾恢复的效率具有重要的指导作用。

The result shows that: The variation rhythm of the sensitivity index changed unanimously for Jensen,Blank and Stewart water production functions of spring wheat in Liangzhou city,the volume is small in the former stage,then become large at the middle stage,and less at the last stage. Jensen and Stewart water production functions are better of spring wheat in Gulang County in 1987-1989. The Variation rhythm of water deficiency sensitive index is unanimous: the volume are small at first,then large at middle,and diminish at last. The Variation rhythm of water deficiency sensitive index is unanimous in Jensen,Blank and Minhas of flax in Liangzhou county in 1987-1989. The water deficiency sensitive index in Gulang district in 1987-1989 models bad,are too many minus. 3 Establishing the non-linear model to definitive the irrigation quota and dimension of single crop,according the three prototype Precipitation,allocating the limited water optimally according to full water supply,95 percent,75 percent and 50 percent. Economy benefit is the biggest aim function,so getting three groups for irrigation quota,irrigation dimension and benefit,the biggest benefit is the most optimal result.

结果表明：1985-1986 年凉州春小麦Jensen 模型、Bl(来源：10a1ABC论文网www.abclunwen.com)ank 模型和Stewart 模型的敏感指数变化规律接近一致，在前期较小，中期增大，最后再减小。1987-1989 年古浪春小麦水分生产函数以Jensen 模型和Stewart 模型拟合较好，其敏感指数变化规律比较一致，敏感指标值前期较小，中期增大，后期又减小。1983-1985 年凉州亚麻水分生产函数以Jensen 模型、Blank 模型和Minhas 模型敏感指标值变化规律比较一致：先减小，后增大，最后再减小。1987-1989 古浪亚麻敏感指数出现负值较多，模型拟合较差。3 建立单作物种植条件下灌溉定额与灌溉面积的确定的非线性规划模型，将有限的水量按照充分供水，95%、75%和50%供水来分配水资源，以经济效益最大为目标函数，得出三组灌区灌溉面积和效益结果，其中以效益最大为最优解。

We analyzed the cost of producing water in water-supply plants in small western towns based on the cost structure analysis and the cost model of investment index, and subsequently derived the unit cost for producing water.

最后，在分析成本构成的基础上，结合投资指标费用模型，对西部小城镇供水厂站的制水成本进行了分析，得到了西部小城镇供水厂站的单位制水成本。

Pumps are used to supply water or to dewater at construction sites and to provide water jets for some types of construction.

泵是用来供水，或脱水在建筑地盘，并提供水射流对某些类型的建筑。

According to the inside provincial water supply peculiarity and characteristic of south-to-north water diversion project in jiangsu province, the article analyses the necessary and feasibility of practicing preferential electrovalence toward the inside provincial water supply function of snwdp in jiangsu province, and puts forward that practicing preferential electrovalence is one of the basic conditions for the benefit exertion of snwdp in jiangsu province.

针对南水北调东线江苏境内工程省内供水功能的性质和特点，分析了对江苏境内工程省内供水运行实行优待电价的必要性和可行性，指出实行优待电价是南水北调江苏境内工程效益发挥的基础性条件之一。

The research results evince that with the new theory and method, we can design the water supply net works to match the requirements of the future, avoid the broken of road in construction, save investment and have good hydraulic conditions.

结果表明，这一全新的管网规划和优化设计理论进行管网的优化设计，可使所设计的管网系统能够满足近期和远期的供水要求、避免在施工中出现的大范围破坏路面的，并可节省工程投资，使供水条件更有利。

The research results evince that with the new theory and method, we can design the water supply cn works to match the requirements of the future, avoid the broken of road in construction, save investment and have good hydraulic conditions.

结果表明，应用这一全新的管网规划和优化设计理论进行管网的优化设计，可使所设计的管网系统能够满足近期和远期的供水要求、避免在施工中出现的大范围破坏路面的问题，并可节省工程投资，使供水条件更有利。

Park in the water supply, electricity, gas and steam side of unified planning, unified by the heat island center heating, water supply factory uniform.

园区在供水、电、天然气和蒸汽方面统一规划，由热岛中心统一供热，供水有统一的供水厂。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。