pollution distribution 中文意思是什麼

pollution distribution 解釋
污染分佈
  • pollution : n. 1. 污染（作用）。2. 腐敗，墮落。
  • distribution : n 1 分配，分發，配給；分配裝置[系統]；配給品；配給量；【經濟學】配給方法，配給過程；分紅；【法律...
  1. Using cd, cu, zn and cr as experimental toxicants and crucian as experimental creature, we employed the environmental biotechniques ( flame atomic absorption spectrophotometry, the method of improved pyrogallol autoxidation and electron microscopy ) to study the acute toxicity and secure concentrations of heavy metals to crucian ; the accumulation and distribution of mixed heavy metals to fingling crucian ; the activities of superoxide dismutase ( sod ) of gill and liver tissues and the hispathological and ultrastructural change of superfine structure of liver and kidney of crucian after cadmium exposure. through which, we intended to fully and systemically study the toxic influence of heavy metals to fish, and preliminarily discuss the influence of heavy metals pollution to the diversified level of fish such as individual, organ, tissue, cell and molecule. thus we tried to provide scientific evidence to establish preventative management measures, avoid and relieve the harm of heavy metals pollution to aquicolous ecosystem in time

    隨后以這幾種重金屬作為實驗毒物，以鯽魚為實驗動物，應用環境生物技術、火焰原子吸收分光光度法、鄰苯三酚自氧化法、透射電鏡等技術研究了重金屬cu 、 zn 、 cd和cr對鯽魚的急性毒性及其安全濃度評價、混合重金屬在鯽魚幼體組織內的積累和分佈、 cd對鯽魚鰓和肝臟中sod活性的影響、 cd對鯽魚肝細胞和腎細胞超微結構的影響等，全面和系統地研究了水環境中重金屬暴露對魚類的毒性影響，初步探討了重金屬污染對魚類的個體? ?器官? ?組織? ?細胞? ?分子等各水平層次的影響，為制定漁業生產上預防性的管理措施提供科學依據，及時避免或減輕重金屬污染對水生生態系統造成的損害。
  2. Sichuan is one of the agricultural province, locates in the area between the continental climate and oceanic climate, the distribution of precipitation is always disproportional due to the influence of atmosphere circumfluence, the existence of drought and floodwater plus water pollution have produced huge menace to agriculture, water resources utilization, soil erosion and even the life and properties of human being

    解決水資源的諸多問題，是擺在全黨、全社會和全國人民面前一項刻不容緩的重大戰略任務。四川作為貧水國的一個農業大省，由於地處海洋性氣候與大陸性氣候交接地帶，受大氣環流影響，降水時空分佈不均，水旱災害極為頻繁，尤其是乾旱對農業生產的威脅最大。
  3. The main process of regional ecological risk assessment includes 5 stages : regional analysis, risk receptor selection, risk sources analysis, exposure and hazard analysis, and integrated risk assessment. arming at flood, drought, storm tide, petroleum pollution accident and flow breaking in the lower huanghe river, the probability and distribution of each kind of risk sources are evaluated. the authors bring forward indexes and formulas to measure hazarded degree and risk value of ecosystem. by using remote sensing data, historic record, survey data and by means of geographical information system, regional ecological risk assessment is finished. on the basis of assessment result, the environmental risk management countermeasure of the huanghe river delta is advanced

    以黃河三角洲為例進行了區域生態風險評價理論和方法的探討。針對黃河三角洲主要生態風險源洪澇乾旱風暴潮災害油田污染事故以及黃河斷流的概率進行了分級評價並提出度量生態損失與生態風險的指標和公式，分析了風險源的危害作用運用遙感資料歷史記錄調查數據和地理信息系統gis技術，完成了區域生態風險綜合評價在此基礎上提出黃河三角洲的區域生態風險管理對策。
  4. From the aspect of area distribution, problem of water environment and factors of population, society and economy do n ' t coordinate with each other : in those areas which are rich in water, there are serious pollution and waste ; in those which are lack of water, economy is relatively behind the times ; in those where there is less lack of water, high population density faces the water resource with great potential pressure

    水環境問題與人口、社會、經濟等因素在地區分佈上很不協調，如水資源豐富地區，水污染與水浪費十分嚴重；缺水地區，經濟相對落後；缺水程度低的地區，人口密度較高，使水資源存在巨大的潛在壓力。在影響水環境的相關因素中，人口因素的作用十分突出，主要表現在兩個方面：一是地區人口數量與分佈的集中程度是決定水資源壓力及相關水環境問題的真下因素；二是人口素質與水管理水平之間具有一定的正相關關系。
  5. Study on lead pollution and its distribution in the soil on the highway - sidesof mountain area

    山區公路邊土壤鉛污染水平及其分佈規律研究
  6. The characteristics of heavy mentals distribution and pollution in sediment from lake taihu

    南海北部陸架區表層沉積物中重金屬分佈和污染狀況
  7. The pollution of extremely low frequency field in great power plants and distribution of electric field in transmission line with different voltage grade

    電力設備及高壓架空線路周圍工頻磁場的探討
  8. As the agricultural nfs is the most important factor for water environmental deterioration and lake eutrophication in china, more and more scientists and technologists focus on the control countermeasurc and pollution mechanism of agricultural non - point source ( nfs ). based on the investigation of natural resource and agricultural distribution, the loss rule of nitrogen and phosphorus in the typical land of qiandao lake watershed and distribution rule of the phytoplankton and physico - chemical characteristic in the lake were studied, and the input loading of nitrogen and phosphorus was also calculated by the annagnps model in this thesis. according to the routine monitoring data of the water environment in qiandao lake from 1989 to 2001, the concentrations of toxic substance and heavy metal were under the monitoring limit, but the total nitrogen ( tn ) and total phosphorus ( tp ) were much higher than the criterion for lake and reservoir

    本文調查了千島湖流域的自然資源和農業生產情況，研究了典型坡地降雨徑流中的氮、磷污染物的輸出規律，利用annagnps模型估算流域農業非點源污染物輸入負荷，並在千島湖內設點采樣，對水質理化指標和浮游植物群落進行系統的研究，得出以下結論： 1989 2001年間的水環境常規監測資料統計分析表明，有毒物質和重金屬濃度長期在監測下限內， no _ 2 - n 、 no _ 3 - n 、 nh _ 3 - n年平均濃度均符合類標準，但湖泊水庫特定項目tn和tp濃度分別為超類和類，呈嚴重超標狀況，湖區主要污染因子是將導致富營養化的物質tn和tp 。
  9. The distribution pattern can be attributed to ( 1 ) pollution sources located mostly in the eastern coast area ; ( 2 ) the current circulation systems in jiaozhou bay which hindered diffusion of pahs from east towards west ; ( 3 ) sediment grain size and composition factors had an influence on the horizontal distribution

    造成這種東-西差異分佈格局的原因有（ 1 ）絕大部分污染源集中在膠州灣東岸； （ 2 ）膠州灣的環流系統和潮流系統使東部的污染物很難向西部擴散； （ 3 ）沉積物粒度及有機質含量對pahs含量分佈有一定的影響。
  10. With investment amounting to 13 million rmb and an area of 50 chinese mu, yufeng ( xiaolan ) non - pollution vegetables processing industry park is a modern agricultural products processing industry park with integrated operations of vegetable storage, preservation, processing, logistics, and distribution

    投資1300萬元，佔地面積50畝，是一個集蔬菜貯藏、保鮮、加工、物流配送為一體的現代農產品產業加工園。
  11. Based on the radioactive survey and results of sample analysis in certain radioactive - polluted area, anhui province, the spatial distribution of radioactive pollution source, the composition of radioactive nuclides are summarized, and the formation condition of radioactive pollution source in the investigated area are analysed

    摘要本文根據安徽某地放射性污染調查區的放射性測量和取樣分析結果，總結了該地區放射性污染源的空間分佈、放射性核素組成等特徵，分析了該區放射性污染源的形成條件。
  12. Then by using the excel software, we get the figures of the velocity profile and pollution concentration distribution of different sections, and get the ventilation efficencies of the three ventilation forms. as view from the efficiency of the draining pollution, a desired ventilation is regarded as the up - inlet and down - outlet on the same side after compairing the three ventilation efficiency. the trend of the velocity profile and the pollution concentration distribution both are basically identical with the practice, and the numerical results of the ventilation efficency accord with the ones studied by prof

    從排污效果的角度上來看，分析得出這幾種方式下較好的送排風方式是同側上送下排方式。從得到的流場、濃度場分佈的趨勢來看與實際大體一致，計算的通風效率與已經有的實驗值大體相吻合，說明本文所採用的數學模型合理，計算方法基本可靠。
  13. Located in middle part of inner mongolia, there are uneven distribution of water resources from regional and seasonal perspectives, meanwhile, the potential water pollution causes the shortage of water resources

    摘要我國水資源總量並不少，但人均水資源的佔有量只有世界人均佔有量的四分之一，屬於世界上幾個最為缺水的國家之一。
  14. There are three difficulties and key problems in this papaer : : the first problem is what is the dominance bearing of the leakage fractures, and how the bedrock fracture water distribute, the second is how to test the complex chemical behavior in experiment way and quantify the relative parameters, the last question is how to number the transportation of the element 90sr and its pollution to solve the three problems, this paper does lots of work and come to the prospective order, the creativities in this thesis as follow : ( 1 ) the dominance bearing of the leakage fractures and the distribution feature of the fracture water are ascertained based on rich geological data, these basal researches are very important, which are the premises to build the transport model of the fracture water in hae field

    本項研究工作的難點和關鍵問題有三個： hae處置場基巖裂隙系統中，導水裂隙的優勢方位是什麼，基巖裂隙水活躍帶分佈情況如何；怎麼對核素遷移的復雜化學行為進行實驗室測試並取得有關定量化參數；怎樣數值化表現出溶質的遷移行為和污染情況本論文在解決以上三個問題上做了大量的工作，達到了預期的目的，其創新之處有以下三點： （ 1 ）通過地質資料的分析，首次提出了hae預選處置場基巖裂隙導水的優勢方位和基巖裂隙水活躍帶的大致分佈特徵。它是一個很重要的基礎性研究成果，是建立hae處置場水運動模型的前提。
  15. This paper expounds the source and distribution of the harmful heavy metal in chinese environment at present, and probes into how to prevent the harmful heavy metal pollution

    就當前我國環境中有害重金屬的來源及分佈作了簡要闡述，對如何防治重金屬污染進行了探討。
  16. Industry, agriculture and life pollutions are sources of total nitrogen, so their distribution and pollution intensity are important influence factors of total nitrogen ' s varying law

    工業、農業和生活污染源是總氮的主要來源，其分佈和污染強度是總氮濃度變化規律的重要影響因素。
  17. The permitted total emission equivalent quantity of urban air pollutants and its distribution in urban area, which can be used as regional air pollution control index and can be allocated to each major pollution source as its limit of emission quantity, can be worked out by using linear programming model based on regional grid air pollutants transfer matrix which considers the difference of functional regions and the justice of the permitted emission ' s distribution

    通過將區域劃分為不同的功能區和管理小區，構造區域間大氣污染物轉移矩陣及利用線性規劃模型來確定城市大氣污染物允許排放當量及分佈，並以此作為區域控制指標分配至污染源，充分體現環境功能區差異和容量分配的公平性。
  18. Abstract : based on the analysis of oil pollution in zhu - ao waters caused by vessels in the past 10 years, some deficiencies in pollution prevention and control are pointed out from aspect of the field management. and some proposals are made for water quality analysis, oil type identification, prevention focal points and distribution of pollution prevention funds

    文摘:系統分析了船舶在珠澳水域造成的油污染情況，從現場管理的角度，結合近10年來發生的油污事故，針對不同污染途徑找出了防治工作中的一些不足，並對水質分析、油品鑒定、防治重點、防治基金分配等方面提出一些建議。
  19. With wavelet based gray - gradient symbiosis matrix to compute the ununiformities of gray distribution and gradient distribution, a kind of pollution index was defined

    利用小波的灰度梯度共生矩陣計算基於鄰域的圖像灰度分佈不均勻性和灰度梯度分佈不均勻性。
  20. " restoration plan of wetland higher plant community in xuanwu lake " discusses the tenet and principle of the restoration of wetland higher plant community in xuanwu lake, collects the basis of choosing of the wetland higher plant communities from four angles, controlling pollution, landscape succession, beautifying environment, economic utilization. then on the basic of the environment characteristic of the xuanwu lake and the characteristic of the vegetative form and the distribution pattern of wetland plant community, we choose the suitable wetland plant population ; make the plan of the topographical reformation and wetland plant community construction

    「玄武湖濕地高等植物群落恢復規劃方案」討論了玄武湖濕地高等植物群落恢復的原理與原則，從治理污染、景觀演替、觀賞美化和經濟實用的角度研究收集了植物群落的選擇依據，進而根據玄武湖濕地獨特的生態環境特點、濕地植物群落特殊的生活型及分佈方式，確定了適宜的濕地高等植物種群，同時也確定了玄武湖濕地植物群落恢復試驗區湖底地形的改造方案、植物群落的配置和種植方式。
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