Methods altogether 97 water samples in dry season and 101 samples in rainy season were collected , and the mutagenicity was detected by the vicia faba root - tip micronucleus test and comet assay test 方法：采用蚕豆根尖微核试验和慧星实验方法，检测泰兴市枯水期97份和丰水期101份水样的致突变性。
In the drinking water resources of hangzhou ( qiantang liver and east tiao stream ) , concentrations of ocps are higher during plentiful water time while opps are higher during low water time 钱塘江和东苕溪有机氯农药含量在丰水期较枯水期高，而有机磷农药含量在枯水期较高；运河水有机农药含量在枯水期较高。
The disaster of saline water intrusion has arisen continually at stream outlet area of the pearl river delta from the end of 1990s , which has brought on lack of water supply to fifteen millions people 摘要从上世纪90年代末开始，咸潮灾害在河流枯水期频繁侵袭珠江三角洲近河口地区，给1500万人口的生活和生产用水造成了很大的困难。
Objective to examine the mutagenicity of different types of water in taixing during dry and rainy season respectively , and the correlation between the mutagenicity and the occurrence of stomach , esophagus and liver cancer in this area 摘要目的：检测泰兴地区枯水期和丰水期不同水体的致突变性，并研究其与当地胃、食管和肝癌发生的相关关系。
At the end of 2003 , yunda successfully completed the marketing and energy - saving promotion planning for the chengdu power bureau during the low water season , designed and produced a lot of promotional materials and souvenirs , and created wide - spread social benefits 于2003年年底,成功完成了成都电业局枯水期市场营销及节电宣传策划,并为其设计制作了大量的宣传品及纪念品,取得了广泛的社会效益。
This paper sums up present and history karst collapse in tai ’ an , shandong province . it mainly spreads in the quaternary system cover areas where the looser layers are thinner , underlying open karst caves and cracks are under the quaternary system 本文分析了山东省泰安市岩溶地面塌陷的形成历史及现状,从地下水动态及地质环境监测结果入手,研究得出塌陷主要分布在松散层较薄的第四系覆盖区,发生时间主要集中于枯水年份或年内枯水期和丰水期初。
After " south to north water transfer ( e ) " project put in practice , the self - purification capability will be decreased in the yangte river , especially in lower water period , so the wastewater discharge of shanghai will have an influence on wetland environment in the yangtze river month 摘要南水北调东线工程实施后，长江枯水期对其污水自净能力将会有一定程度的降低，因此，目前上海市污水排放会对长江口湿地和河口生态环境的影响将发生微妙的变化。
The paper introduces the condition of the continuous high voltage during 1999 dry season of hubei main network , analyzes the formative cause , describes the treatment methods in other province and provids suggestion to restrain high voltage and improve reactive voltage in hubei network 介绍湖北电网1999年枯水期主网持续高电压状况；分析了高电压形成的原因；介绍了国内其他省网解决高电压问题的办法；提出了湖北电网抑制高电压措施和改善无功电压工作的建议。
The paper introduces the condition of the continuous high voltage during 1999 dry season of hubei main network , analyzes the formative cause , describes the treatment methods in other province and provids suggestion to restrain high voltage and improve reactive voltage in hubei network 摘要介绍湖北电网1999年枯水期主网持续高电压状况；分析了高电压形成的原因；介绍了国内其他省网解决高电压问题的办法；提出了湖北电网抑制高电压措施和改善无功电压工作的建议。
On time , its expression in annual is , total nitrogen is higher in high water period than low water period , but it varying in agriculture area much regularly , and variations in industrial area are not so regularly ; in interannual , varying law of total nitrogen is different with its location 在时间上，年内变化表现为，丰水期的总氮浓度高于枯水期，但农业区的总氮浓度变化较为规律，工业区的变化呈现出不规律的现象；在年际上，总氮在年际的变化规律随地点的不同而存在差异。
