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assessment
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  评价
    Study on Comprehensive Assessment of the Regional Ecological Environmental System Security Based on RS, GIS and Models
    基于RS、GIS和Models的区域生态环境系统安全综合评价研究
短句来源
    Research on Artificial Neural Networks (ANN) for Water Quality Assessment and Simulation
    基于人工神经网络(ANN)的水质评价与水质模拟研究
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    Health-based Risk Assessment and Economic Valuation on Energy Options and Air Pollution in Shanghai
    上海市能源方案选择与大气污染的健康危险度评价及其经济分析
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    A Study on the Theory and Method of Health Risk Assessment for Wastewater Reclamation and Reuse
    城市污水再生利用健康风险评价理论与方法研究
短句来源
    Research on Assessment of Surface Water Pollution and Controlling Strategies in Beijing
    北京市地表水体污染评价与控制对策研究
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  评估
    Tidal Flat Ecosystem Service Functions Assessment and Reclaimed Area Ecosystem Optimization
    滩涂生态系统服务功能评估与垦区生态系统优化研究
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    RISK ASSESSMENT AND PREDICTION FOR A CHEMICAL SUDDEN ACCIDENT
    化学突发事故的风险评估与预测
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    NEW PROGRESS ON ASSESSMENT OF RADIATION RISK IN THE 1990 RECOMMENDATIONS OF ICRP
    ICRP1990年建议书关于辐射危险评估的新进展
短句来源
    Predicative Assessment on Traffic Noise of the Ringing Road Ⅱ in Chengdu
    成都市新建过境二环路交通噪声预测评估讨论
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    OPTIMIZATION CONTROL OF CEMENT DUST AND ECONOMIC ASSESSMENT FOR ENTERPRISES IN A SMALL TOWN
    乡镇企业水泥粉尘优化控制及其经济评估
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  评定
    Quality Assessment for High-Calcium Fly Ash
    高钙粉煤灰的品质评定 国家标准《用于水泥和混凝土中的粉煤灰》GB/T 1596-2005评述
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    ASSESSMENT ON THE CARCINOGENIC RISK OF CHLORODIMEFORM
    杀虫脒对人致癌的危险度评定
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    THE BACKGROUND CONTENT OF INORGANIC CHEMICALS AND MUTAGENICITY ASSESSMENT IN VIVO OF THE WATER FROM FUXIAN LAKE
    抚仙湖无机污染物化学背景值及动物体内致突变性评定
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    The model of grey theory's clustering analysis for the atmosphere quality assessment
    大气环境质量评定的灰色聚类模式
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    Uncertainty Assessment for the Measure of Boiler Dust Concentration
    锅炉烟尘排放浓度测量的不确定度评定
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  “assessment”译为未确定词的双语例句
    Study on the Environmental Impact Assessment and Improvement of Cement & Concrete System
    水泥-混凝土体系环境影响评价及其应用研究
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    Study on Strategic Environment Impact Assessment Resulting from Land Development and Consolidation Planning
    土地开发整理规划战略环境影响评价研究
短句来源
    Study on the Method and the Policy of Planning Environmental Assessment of Mineral Resources
    矿产资源规划环境影响评价方法与政策研究
短句来源
    An Elementary Assessment of Environmental Benefits of Each Step of Multistage Treatment in Dyeing Wastewater
    染色废水多级处理中的单项环境效益浅评
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    Experimental Assessment of Stabilities of DPT
    DPT安定性研究
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  assessment
An improvedm-dimensional cer model for assessment of the synthetical pollution status of environment
      
Local influence assessment based on local divergence in stochastic regression model
      
This paper describes the local influence assessment for parameter inference of a statistical model by using curvatures associated with local divergence under a generic perturbation scheme.
      
Instantaneous availability assessment of renewable component in exponential distributions
      
Pest risk assessment of Dendroctonus valens, Hyphantria cunea and Apriona swainsoni in Beijing
      
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In this paper the authors have made scientific researches on the causes of the damages done to the fishery resources on the basis of the article The effects of water quality pollution of the 2nds songhu river on the fishery resources”.It covers four aspects: (1) The trunk reaches of the 2nd songhua river and its pollution inrecent years; (2) The work having been done and the methods employed; (3) The monitorings of the pollutants which are hurtful to fishery resources in the river water;the effects on the planktons,the...

In this paper the authors have made scientific researches on the causes of the damages done to the fishery resources on the basis of the article The effects of water quality pollution of the 2nds songhu river on the fishery resources”.It covers four aspects: (1) The trunk reaches of the 2nd songhua river and its pollution inrecent years; (2) The work having been done and the methods employed; (3) The monitorings of the pollutants which are hurtful to fishery resources in the river water;the effects on the planktons,the ovipositi- ng sites:the embryonic development of fishes and the commodity value of the fishing acouisitions; (4) the synthetic assessment of the organic pollution in the middle and lower reaches of the 2nd songhua river; the principal pollutants caus- ing damages to the fishery resources;the effects on the interferences and dnmages done to the ecological equibrium;and the suggestions for further study.

本文包括四个部分,第一部分介绍第二松花江千流概貌以及近年来主要污染概况;第二部分简介工作内容及方法;第三部分阐明江水中对渔业资源有害污染物的检测情况及其对浮游生物、产卵场、鱼类胚胎发育以及渔获物的商品价值等所产生的影响。最后一部分初步提出第二松花江中、下游有机污染综合评价值;渔业资源遭受破坏的主要污染物;生态平衡受到干扰破坏后的影响以及对今后进一步研究的意见。

This paper reports acute toxicity of effluents in the process of exploiting the vanadium trtanornagnetite to carps, Cyprinus caprio and avoidance capacity of this species to these effluents. Characteristics of the three whole effluents and it’s biological assessment have been discussed. Bioassays using this freshwater fish as the test organisms in the laboratory show that the 24-hour LC_(50) value is 33.2% and 96-hour LC_(50) value is 26.6% for the cleared effluent of ore dressing plant Lit 23.5±0.5℃...

This paper reports acute toxicity of effluents in the process of exploiting the vanadium trtanornagnetite to carps, Cyprinus caprio and avoidance capacity of this species to these effluents. Characteristics of the three whole effluents and it’s biological assessment have been discussed. Bioassays using this freshwater fish as the test organisms in the laboratory show that the 24-hour LC_(50) value is 33.2% and 96-hour LC_(50) value is 26.6% for the cleared effluent of ore dressing plant Lit 23.5±0.5℃ of the water tested. However, both the cleared effluents of plants of smelting and coal cleaning do not cause acute lethal to this species during 168-hour. The data of avoidance test in the laboratory indicate that carps have avoided at least two concentrations of the three cleared effluents withm the concentrations tested, although the avoidance differs with different effluents. This species have avoided 100% and 100% oredressing effluent; 2.0%, 10% and 100% for smelting effluent; 10% and 100% for coal cleaning effluent, respectively. At different testing stations along the river, in the lower reaichs of the outlet for effluents, are laid up the“live box”to determine to toxicity of effluents. The results have been obtained from observations of the field bioassays.Accord ing to the LT_(50) and LT_(100) for this species, the toxicity of the three efluents is greater than that in the laboratory test. The various results obtained from present studies in the laboratory and field are closely related to the chemical characteristics of whole effluents. It is evident that poisonous effects of abnomally high concentrations of suspended matters and metals in effluents for aquatic organisms should be considered.

本文报导釠钛磁铁共生矿的开发过程中三种废水对鲤鱼的急性毒性,以及鲤鱼对这些废水的回避能力。试验水温为23.5±0.5℃,澄清的尾矿废水的96小时LC_(50)为26.6%;澄清的冶炼废水和洗煤废水在168小时内均不引起鲤鱼急性致死。鲤鱼的回避能力随澄清的废水种类不同而异,能分别回避10%和100%尾矿废水;2.0%、10%和100%冶炼废水;10%和100%洗煤废水,回避能力与废水浓度成正相关。在废水排出口下游的现场生物检测所得LT_(50)和LT_(100)值表明,这三种废水的毒性比实验室试验的毒性大得多。对三种全废水的水质特征进行了化学分析,并就其水质特征讨论这些废水的生物学评价。

This paper reports acute toxicity of effluents in the process of exploiting the vanadium titanomagnetite to carps,Cyprinus caprio and avoidance capacity of this species to these effluents.Characteristics of the three whole effluents and it's biological assessment have been discussed. Bioassays using this freshwater fish as the test organisms in the laboratory show that the 24-hour LC_(50) value is 33.2% and 96-hour LC_(50) value is 26.6% for the cleared effluent of ore dressing plant at 23.5±0.5℃ of the...

This paper reports acute toxicity of effluents in the process of exploiting the vanadium titanomagnetite to carps,Cyprinus caprio and avoidance capacity of this species to these effluents.Characteristics of the three whole effluents and it's biological assessment have been discussed. Bioassays using this freshwater fish as the test organisms in the laboratory show that the 24-hour LC_(50) value is 33.2% and 96-hour LC_(50) value is 26.6% for the cleared effluent of ore dressing plant at 23.5±0.5℃ of the water tested. However,both the cleared effluents of plants of smelting and coal cleaning do not cause acute lethal to this species during 168-hour. The data of avoidance test in the laboratory indicate that carps have avoided at least two concentrations of the three cleared effluents within the concentra- tions tested,although the avoidance differs with different effluents.This species have avoided 10% and 100% oredressing effluent;2.0%,10% and 100% for smelting effluent;10.% and 100% for coal cleaning effluent,respectively. At different testing stations along the river,in the lower reaichs of the outlet for effluents,are laid up the“live box”to determine to toxicity of efflu- ents.The results have been obtained from observations of the field bioassays. Accord ing to the LT_(50) end LT_(100) for this species,the toxicity of the three effluents is greater than that in the laboratory test. The various results obtained from present studies in the laboratory and field are closely related to the chemical characteristics of whole effluents.It is evi- dent that poisonous effects of abnomally high concentrations of suspended mat- ters and metals in effluents for aquatic organisms should be considered.

本文报导钒钛磁铁共生矿的开发过程中三种废水对鲤鱼的急性毒性,以及鲤鱼对这些废水的回避能力。试验水温为23.5±0.5℃,澄清的尾矿废水的96小时 LC_(50)为26.6%;澄清的冶炼废水和洗煤废水在168小时内均不引起鲤鱼急性致死。鲤鱼的回避能力随澄清的废水种类不同而异,能分别回避10%和100%尾矿废水;2.0%、10%和100%冶炼废水;10%和100%洗煤废水,回避能力与废水浓度成正相关。在废水排出口下游的现场生物检测所得 LT_(50)和 LT_(100)值表明,这三种废水的毒性比实验室试验的毒性大得多。对三种全废水的水质特征进行了化学分析,并就其水质特征讨论这些废水的生物学评价。

 
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