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characteristics of hydrochemistry
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  水化学特征
     According to the distribution rule and characteristics of hydrochemistry and buried depth of groundwater, the countermeasures on agricultural water utilization especially the possibility of groundwater contaminated by sewage irrigation must be taken into account when soluting the problem of groundwater resource shortage in Taihang Mountain-foot Plain of North China.
     地下水的水化学特征和埋深特征表明 ,在解决本区的水资源短缺问题时 ,除考虑利用各种节水措施改变目前存在的传统灌溉制度外 ,还必须考虑区内污水灌溉对地下含水层污染的可能性 ,防止污染地下水。
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  “characteristics of hydrochemistry”译为未确定词的双语例句
     The characteristics of hydrochemistry, and the correlations of plankton with the ecological factors and the fishery utilization in Xiaochi Lake are discussed.
     3)文中讨论了硝池的水化学特点、浮游生物和生态因子的关系以及渔业利用等问题。
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  相似匹配句对
     characteristics;
     三、发展的特点;
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     The characteristics of G.
     论文首先对语音编码的各种方案进行了比较,并对G.
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     And the characteristics of the G.
     通过仿真和实验,也验证了G.
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     The Hydrochemistry Characteristics of Interior Rivers in Tarim Basin
     塔里木盆地河流水化学特征
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     Characteristics of Hydrodynamics and Hydrochemistry in the Coastal Zone Near Beihai
     北海市海岸带水动力和水化学特征的研究
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  characteristics of hydrochemistry
The results of water sample analyses and investigation in the head area of the Changjiang River reveal that the characteristics of hydrochemistry of the river vary with drainage basins.
      
Investigation on fundamental characteristics of hydrochemistry in head area of the Cangjiang River
      


In this paper through the analysis of the hydrochemical composition of natural water in the Hanasi Lake, the type and fundamental characteristic of hydrochemistry can be determined. The water possesses the merits of low mineralized degree and hardness, rich dissolved oxygen, moderate pH and few decompositional substances. The type of water is C_I~(Na).Besides, through the composite assessment of water quality and nutrition status in this lake, the folowing conclusions can be given: the nutrition status...

In this paper through the analysis of the hydrochemical composition of natural water in the Hanasi Lake, the type and fundamental characteristic of hydrochemistry can be determined. The water possesses the merits of low mineralized degree and hardness, rich dissolved oxygen, moderate pH and few decompositional substances. The type of water is C_I~(Na).Besides, through the composite assessment of water quality and nutrition status in this lake, the folowing conclusions can be given: the nutrition status of the lake belongs to oligo-mesotrophic type, the excelent water quality (second grade) occupy great majority of the whole area of this lake. Therefore, the wat erconforms to many uses: drinking, fishery and tourism etc

本文通过对哈纳斯湖天然水体化学成份的分析,确定了水化学类型及基本特征。湖水具矿化度低、硬度小、pH值适中、溶解氧丰富、还原性物质少等优点,水化学类型为重碳酸盐钠组Ⅰ型水(C_I~(Na))。本文还对该湖水质及营养状况进行了综合评价,并得出了以Ⅱ类水体为主、营养程度适中的评价结论。湖泊水质能符合生活饮用、渔业、旅游等多种用途的需要。

This paper presents the results of chemical and biological surveys on Lake Xi-aochi in 1982,1984 and 1990. The lake, with an area of about 17 km2 and an average depth of 3 m at high elevationis located in the south part of Shanxi province, China (110°46'-HO°11'E, 38°48'~32°23'N).The average salinity fluctuated from 10. 3 to 78. 3 g/L in the lake and under Hammer' s classfication the lake is NaMgSO4Cl type.About 42 genera of phytoplankton and 62 species of zooplankton had been sampled. Benthos and fishes are...

This paper presents the results of chemical and biological surveys on Lake Xi-aochi in 1982,1984 and 1990. The lake, with an area of about 17 km2 and an average depth of 3 m at high elevationis located in the south part of Shanxi province, China (110°46'-HO°11'E, 38°48'~32°23'N).The average salinity fluctuated from 10. 3 to 78. 3 g/L in the lake and under Hammer' s classfication the lake is NaMgSO4Cl type.About 42 genera of phytoplankton and 62 species of zooplankton had been sampled. Benthos and fishes are poor in species.The average biomass of phytoplankton is 1. 33-26- 6 mg/L, in which the dominant species are: Navicula spp, Cyclotella meneghiniana, Dunaliella salina, Kirchneriella contor-ta, Carteria sp, Chlorella vulgaris, Oocystes lacustris, Cryptomonas erosa, Glenodinium sp, Euglena sp, Prymnesium parvum, Chroococcus spp, and Phormidium sp-The average biomass of zooplankton is 0. 07 - 20. 1 mg/L, in which the dominant species are: Brachionus plicatilis, Pedalia fennica, Monostyla sp, Artemia sp, Bosmina sp, Moina mongolica, Sinocalanus tenellus, Metadiaptomus asiaticus, Thermocyclops kawamurai and Apocyclops royi. The average biomass of zoobenthos is 6-6 (<1-42. 5) mg/m2, in which the larva of Limnochironomus is dominated.The characteristics of hydrochemistry, and the correlations of plankton with the ecological factors and the fishery utilization in Xiaochi Lake are discussed.

本文报道1982、1984和1990年对内陆盐水湖——硝池进行水化学和水生生物调查的结果。1)湖水盐度平均10.3~78.3g/L,水化学类型按Hammer分类法属NaMgSO_4Cl型。2)共见到42属浮游植物和62种浮游动物,底栖动物和鱼类的种数很少。浮游植物平均生物量1.33~26.6mg/L,优势种有:舟形藻、孟氏小环藻、盐藻、卡德藻、扭曲蹄形藻、普通小球藻、湖生卵囊藻、啮蚀隐藻、光甲藻、裸藻、小三毛金藻、蓝球藻和席藻。浮游动物平均生物量0.07~20.1mg/L,优势种有:褶皱臂尾轮虫、环顶巨腕轮虫、单趾轮虫、卤虫、象鼻溞,蒙古裸腹溞、细巧华哲水蚤、亚州后镖水蚤、等刺温剑水蚤和短角异剑水蚤。底栖动物生物量平均6.6(<1~42.5)mg/m~2,以二齿沼摇蚊幼虫占优势。3)文中讨论了硝池的水化学特点、浮游生物和生态因子的关系以及渔业利用等问题。

Through the analysis of hydrochemical composition of natural water in Nushan Lake, the type and fundamental characteristics of hydrochemistry can be determined. The water is char-acterized by iow minieralized degree and hardness, rich dissolved oxygen, and low alkaline pH. The type of water is C1Ca.Besides, through the compositive assessment of water quality in this lake, the following conclusions can be given: grade IV occupies great majority of the whole water area of this lake. Therefoe, the water conforms...

Through the analysis of hydrochemical composition of natural water in Nushan Lake, the type and fundamental characteristics of hydrochemistry can be determined. The water is char-acterized by iow minieralized degree and hardness, rich dissolved oxygen, and low alkaline pH. The type of water is C1Ca.Besides, through the compositive assessment of water quality in this lake, the following conclusions can be given: grade IV occupies great majority of the whole water area of this lake. Therefoe, the water conforms to many uses: drinking, fishery and tourism, etc.

通过对女山湖水体化学成份的分析,确定其水化学类型及基本特征,并对水质进行综合评价。结果表明:湖水属低矿化软水,pH偏碱,溶解氧丰富,水化学类型为重碳酸钙组Ⅱ型水(C_1~(Ca),且以Ⅳ类水质为主,基本符合生活饮用、渔业等多种用途的需要。

 
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