And imported water hyacinth plants are choking some parts of the Yangtze River and the Pearl River.
而进口的水葫芦正在淤塞长江和珠江的部分河段。
In October, the United Nations Environment Program declared the Yangtze and Pearl River estuaries dead zones. The water doesn't have enough oxygen in it to support fish.
去年十月，联合国环境署宣布扬子江及珠江入海口为死水区。这两处地区水的含氧量不足以维持鱼类的生存。
Reservoir homogeneity and bottom water thickness are mainly investigated, compared and studied in order to understand why the sand reservoirs in Pearl River Mouth Basin is with higher productivity.
对珠江口盆地砂岩油田高产能的原因，重点从储集岩的均质性和底水厚度两个因素做了调查、对比和研究。
The water quality of the pearl river system in guangxi is better than that in guangdong.
珠江水系广西境内江段水质好于广东境内江段。
Using Pearl River source water as raw water, the contaminant removal effect of carbon and sand filter after the biological aerated filter(BAF)pretreatment process was investigated.
以珠江广州段源水为处理对象，考察了曝气生物滤池（BAF）预处理工艺后炭砂滤池的除污效果。
Based on a great amount of historical data to analyze the evolution of Guangzhou reach of Pearl River and the changes of water environmental quality qualitatively and quantitatively.
通过大量的历史数据，对珠江广州河段的演变和水环境质量的变化作了定性、定量分析。
If the water in the Pearl River were clear, we would be able to swim in it.
如果珠江的水是干净的，我们就可以在珠江里游泳啦。
According to forecast, water flow shall be low during dry period of 2006-2007 and water supply in the Pearl River Delta shall be threatened by salty tide again.
据预测，珠江流域2006—2007年度枯水期来水依然偏枯，珠江三角洲地区将因咸潮继续面临严峻的供水局面。
A three dimensional water quality model was developed to investigate DO vertical transport in the Zhujiang (Pearl) River Estuary (PRE) in summer.
通过建立一个珠江口三维水质模型，对夏季珠江口溶解氧垂向输运进行研究。
Guangzhou is located in the Pearl River Delta hinterland, city since water is inextricably linked with the city.
广州位于珠江三角洲腹地，自建城以来，水就与城市密不可分。
Secretary under the town, who had been hailed as "little Shanghai", the "pearl of the river water" reputation.
问题补充：下司古镇，曾被人誉为“小上海”、有“清水江上的明珠”之美称。
Samples of sediment, overlying water, pore water, and benthic invertebrate were collected at 13 stations along a typical municipal polluted river in the Pearl river Delta.
研究区域为珠江三角洲一条典型城市污染河道，采集了13个站位沉积物、上覆水、间隙水及底栖动物样品进行分析。
Based on the comprehensive analysis of the present water quality of Pearl River Basin, the main pollution sources are found out.
通过对汉江、丹江流域水质现状的研究，详细分析了形成丹江、汉江流域水质现状的成因，提出了该流域水质污染的防护的对策。
In the 1990s, the flood water level was lower than before at most stations in the river network of the Pearl river delta under the same grade of runoff.
90年代以来，珠江三角洲网河区大部分水位站同级流量的洪水位普遍下降的同时，局部河段洪水位却异常壅高。
In the 1990s, the flood water level was lower than before at most stations in the river network of the Pearl river delta under the same grade of runoff.
90年代以来，珠江三角洲网河区大部分水位站同级流量的洪水位普遍下降的同时，局部河段洪水位却异常壅高。
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