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runoff hydropower station
相关语句
  径流电站
     Natural bank classifying method of the middle and low water head runoff hydropower station reservoirs of Guangxi
     广西中低水头径流电站水库天然岸坡分类方法初探
短句来源
     The surveying period of the middle and small type runoff hydropower station is shorter,and fund is lacking, so designers can't survey overall reservoir bank collapsing.
     中小型径流电站勘测周期短、经费较缺乏,在大多数情况下,水库塌岸调查无法进行较全面的勘探工作。
短句来源
  相似匹配句对
     AUTOMATIC CONTROL OF THE ECONOMICAL OPERATION OF RUNOFF HYDROPOWER STATIONS
     径流式水电站经济运行的自动控制
短句来源
     Suzhi is a runoff river hydropower station with low head.
     黄河苏只水电站为河床式低水头电站。
短句来源
     Runoff regulation of Nanshan Cascade No.1 Hydropower Plant
     南山一级水电站的径流调节
短句来源
     Hydropower and China
     水电与中国
短句来源
     Study on mid-range forecast of runoff for Ertan Hydropower Station
     二滩水电站中期径流序列预测研究
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Two aspects concerning the increase of power generation benefit for runoff hydropower stations are discussed. One is to control the upstream water level within an assigned range so that the water head will be made full use of; the other is to reasonably distribute the load between the generating units once the total load for the power plant is determined so as to bring about optimal operation.

本文讨论了提高径流式水电站发电效益的两个方面:一是将上游水位控制在某个指定范围内,使水头得到充分利用;二是当电厂总荷决定后,如何在机组间合理分配负荷,使运行处于最优状态。

Southwest China in this paper refers to Yunnan, Guizhou and Sichuan provinces and Guangxi automous region. The total area is 1.37million square kilometers. Here the water capacity is 826.874 billion cubic meters, including 219.503 billion cubic meters of ground water. This accounts for 29.4 percent of the water capacity of our country. There are many rivers here. These include the Changjiang, Yellow, Zhujiang, Red, Nujiang and Yiluwadijiang Rivers and several coastal rivers in South Guangxi.Thus, it is clear...

Southwest China in this paper refers to Yunnan, Guizhou and Sichuan provinces and Guangxi automous region. The total area is 1.37million square kilometers. Here the water capacity is 826.874 billion cubic meters, including 219.503 billion cubic meters of ground water. This accounts for 29.4 percent of the water capacity of our country. There are many rivers here. These include the Changjiang, Yellow, Zhujiang, Red, Nujiang and Yiluwadijiang Rivers and several coastal rivers in South Guangxi.Thus, it is clear that Southwest China is the most plentiful region in water resources in our country. But contradictions of water supply and water demand are very severe. There are frequent droughts, not enough water offerings in many cities, heavier pollution in middle-sized and small rivers, the widespread decrease in output of the runoff hydropower stations and the decline in inland shipping. These are all insparable with the characteristics and evolutionary laws of water resources. The reasons are as follows:1.The coming of water doesn't coordinate with the use of water. The basins among mountains have more fields and less water, and the mountains have more water and fewer fields. The cities and where the industry centralizes have less water and the remote regions have more water. There is less water in the growing season and in other seasons there is more water. The Karst distributes widely, and this makes the use of water resouces difficult.2.The runoff is decreasing continuously in the dry season. More than 70 percent of water resources of Southwest China appear in the rainy season. Very few water resources are in dry season; besides, they're decreasing constantly. If the distribution types of runoff are not changed, the crisis of using water will emerge.3.Water quality is deteriorating constantly. Originally the water quality of Southwest China is good. With the development of urbanization a id the use of large amounts of pesticide and che-micalfertilizer, it becomes bad. it is an main straegical measure to attach importance to the protection of water and the prevention of its pollution.4.To develop the water resources, it is nece sary to pay attention to local conditions. Storing water and transferring water between river basins should emphasized.

西南是我国水资源最丰富的地区,但供需矛盾十分突出:旱灾频繁;不少城市供水不足;中小河流污染较重;径流式电站出力显著下降;内河航运不断萎缩。分析其原因,与水资源的特点和演变规律分不开。① 来水与用水不协调:坝区地多水少、山区水多地少;城市和工业集中区水量偏小、偏僻地区来水偏大;用水季节来水少、非用水季节来水多;岩溶分布广泛,水资源利用困难。② 枯季径流不断减少:西南水资源70%以上分布在雨季。旱季水很少,且在不断下降。如不改变径流的分配方式,用水危机将会到来。③ 水质不断恶化:西南水质是好的。随着城市化的发展,农药化肥的大量使用,水质变差。重视保护、防止污染是重要的战略措施。④ 水资源的开发必须因地制宜,重视蓄水和跨流域调水的作用。

The surveying period of the middle and small type runoff hydropower station is shorter,and fund is lacking, so designers can't survey overall reservoir bank collapsing.The reservoir bank's rebuilding scale and speed are closely related with the natural bank's rock characteristics ,structure and features. Based on surveying materials of the Youjiang Naji ,Yongjiang Xijin ,Guijiang Jingnan and linking the medium small sized runoff hydropower stations of Guangxi,the author tried to classify the...

The surveying period of the middle and small type runoff hydropower station is shorter,and fund is lacking, so designers can't survey overall reservoir bank collapsing.The reservoir bank's rebuilding scale and speed are closely related with the natural bank's rock characteristics ,structure and features. Based on surveying materials of the Youjiang Naji ,Yongjiang Xijin ,Guijiang Jingnan and linking the medium small sized runoff hydropower stations of Guangxi,the author tried to classify the natural bank of those hydropower stations.

中小型径流电站勘测周期短、经费较缺乏,在大多数情况下,水库塌岸调查无法进行较全面的勘探工作。库岸再造的规模、速度与天然岸坡的岩性、结构和形态有极密切的联系。为此以广西右江那吉、邕江西津和桂江京南3个中型径流电站的勘测资料为主要依据,结合其它中小型径流电站的勘测资料,对该类型电站的水库天然岸坡进行分类尝试。

 
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