From 1998 to 2003, the gray relational entropy of low-water resource system changes from low, high to low value. After 2003, the gray relational entropy begins to increase again.
研究结果表明，贵阳地区1998年到2003年其枯水资源系统的有序度变化从增加到减小再到增加，2003年以后灰关联熵又开始增加，系统有序度又有增强的趋势。
Cities across China are raising the price of water, in moves that try to balance the need to conserve an increasingly scarce resource with the effects on a public used to low fees.
中国的一些城市正在提高水价，希望此举既能保护日益稀缺的水资源，又不会对习惯于低收费的公众造成过大影响。
This was determined by the low available resource, especially low available water and temperature.
这是由于低的有效资源，特别是低的有效水分与温度决定的。
Along with the rapid exploitation of water power resource in west of the country, more and more mid or low-head flood gate dam hinges are appearing.
随着我国西部水电资源的快速开发利用，出现了趆来趆多中低水头的闸坝型水利枢纽。
Duanjia River area is abundance of precipitation and stormrain, but rate of stormrain to water resource is low.
段家河流域雨量丰富，多暴雨，但暴雨水资源比率低。
Remote sensing with characteristics of short period, rich information, and low cost, provided rich data source to hydrology and water resource studies.
遥感数据具有周期短、信息量大和成本低的特点，为水文水资源研究提供了丰富的数据源。
The proportion of fee to deal with wasted water and water resource is too low.
水价构成中成本不实、水资源费和污水处理费比重偏低；
HBC dam concrete is a new dam concrete with low-heat and high crack resistance, and is expected to be widely used in the mass concrete projects of water resource engineering.
HBC大坝混凝土是一种可望在水工大体积混凝土工程中推广应用的低热高抗裂大坝混凝土。
Prior to the mid-1980's, methane from coal seams was classified as an uneconomic resource - one of vast potential, but low value due to poor recovery rates and high associated water production.
在此之前的1980年代中期，从煤层甲烷被列为非经济资源-一个潜在的巨大的，但由于贫困低价值和高回收率有关水的生产。
The major problems in utilization and exploitation of water resource are as follows: low water use coefficient due to old and disrepair water-transporting facilities;
目前水资源利用和开发上存在的主要问题有：农业输水设施不足和失修较为严重，水分利用系数低；
The treated water is colorless and transparent, can be used in the industry circulating water directly, which economizes the water resource, this method has low costs, and the craft is simple.
处理后的水无色透明，可直接用于工业循环水，节约水资源。该法成本低，工艺简单。
The treated water is colorless and transparent, can be used in the industry circulating water directly, which economizes the water resource, this method has low costs, and the craft is simple.
处理后的水无色透明，可直接用于工业循环水，节约水资源。该法成本低，工艺简单。
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