environmental concentration 中文意思是什麼

environmental concentration 解釋
環境濃度
  • environmental : adj. 1. 環境的,環境產生的。2. 環境藝術的。adv. -ly
  • concentration : n. 1. 集中。2. 【化學】提濃,蒸濃,濃縮;濃度;稠密度;【礦物】汰選,選礦,富化。3. 集中注意,專心。
  1. Ecocline a cline that is due to a specific environmental factor, such as a gradient of heavy metal concentration in the soil

    生態漸變群:由物種生存特定環境因素影響而形成的一種漸變群,例如土壤中的重金屬濃度梯度。
  2. If the environmental relative humidity is lower, the drop will undergo evaporation and solute concentration will rise.

    如果環境相對濕度較低,則液滴將蒸發,溶質的濃度也隨之提高。
  3. Nuclear energy. measurement of environmental radioactivity - air. determination by liquid scintillation of the activity concentration of atmospheric tritium sampled by the sparging technique air through water

    核能.環境放射性空氣的測量.利用噴射技術取樣的大氣氚的活度濃縮的液體閃爍的測定
  4. The results suggested that monocrotophos had not only environmental estrogen effects, but also reproductive toxicity. monocrotophos could destroy the membrane systems of three kinds of pituitary secretary cell, spermatogenous cell and sperm. in three kinds of pituitary secretary cell, nuclear membrane and endoplasmic reticulum showed dilation, and endoplasmic reticulum even exhibited fusion under exposure in high concentration

    久效磷對精原細胞的損傷最為嚴重,細胞膜和核膜水腫,高濃度暴露組的細胞膜和核膜溶解,線粒體的崎也有溶解現象;但久效磷對精母細胞和精子細胞的損傷並不明顯,主要表現為膜系統的輕微水腫。
  5. From this result it can be concluded that the est isoenzyme was very sensitivity for the toxication of hg24 and can be used as a bioindicator of the environmental pollution. the same experiment had been done twice in 2003. scetion : from october in 2002 to october in 2003, by using random amplified polymorphic dna ( rapd ), the effects on ovary ' s dna under different concentration of mercury in freshwater crab ( sinopotamon yangtsekiense ) were detected for the first time

    汞對長江華溪蟹卵巢總dna的影響汞對長江華溪蟹( sinopot胭onyangtsekiense )細胞及分子水平的影響以體外暴露的方法,對經汞體外暴露一周長江華溪蟹的卵巢總dna ,採用隨機引物擴增多態性dna ( rapd )技術對13條隨機引物的擴增圖譜用nei共享度公式進行分析。
  6. Abstract : in this paper , we make a study on sampling interval revision of atmospheric diffusion parameter in concentration prediction of atmospheric environmental impact assessment

    文摘:就大氣環境影響評價濃度預測中,對大氣擴散參數取樣時間訂正問題進行了說明和討論。
  7. Effects of diverse environmental factors on the growth rate ( od4oo ) and nitrogenase activity ( ara ) of the strain w12 hi nitrogen - free culture were investigated in our experiments. the results implied that the strain w12 could easily adapt to different cultural conditions : it could use various carbon sources ( especially glucose, sucrose, malic acid, mannitol ), propagate quickly and fix nitrogen at a temperature range of 15 ? to 40 ? and at 25 - 35 ? for optimum, at a ph range of 4 to 8. 5, at a saline concentration range of 0. 01 % to 1. 5 % ; low nlv " concentration had little effect on its nitrogenase activity. ara could also be detected when it grow in the culture media with 5mmol / l ntv "

    W12菌株對環境因子的適應性研究:無氮培養條件下,測定溫度、碳源、酸堿度、滲透壓對w12生長及固氮能力的影響,結果表明,在15 - 40下均能生長並表達固氮酶活性,其最適生長及固氮的溫度為25 - 35 ;能利用葡萄糖、蔗糖、蘋果酸、甘露醇等多種碳源生長並固氮,當培養基中同時存在蔗糖和蘋果酸時,細菌生長和固氮活性最強;在偏酸和偏堿的條件下( ph4 . 5 - 8 . 5 )均能保持較強的生長勢和較高的固氮酶活性,並能通過調節自身代謝平衡並適應環境的酸、堿性變化,使培養液趨于中性:能耐受較高的滲透壓,培養液中卜、 5 naci濃度對其生長和固氮酶活性影響不大,當naci濃度升至2時,菌株的生長勢及固氮酶活性才有所下降:低濃度的鉸對其固氮酶活性影響不大,在0
  8. In this paper, river water quality prediction is integrated with water pollution control measures. two parameters, water environmental capacity and pollution index are selected for pollution control measures. the objective is achieved after the development of simulation model using one - dimensional advection dispersion equation. the model algorithm and computer program is an improvement over the existing water quality models, since the model solution involves four point implicit upwind schemes for water quality prediction and pollution control measures at each grid point. model simulation results the assessment of water environmental capacity that yield the acceptable and realistic pollutants concentration in order to maintain water quality objectives. the pollution and overall pollution index of the river is suggested for integrating number of contaminants variables into one index. study provides the mathematical and scientific procedure for water quality management. the new approach is helpful for the water pollution control and to study the impacts of waste effluents on the river system for strategic planning purposes

    本文將水質預測及水污染控制措施有機地結合,選取水環境容量和污染指數作為水污染控制的參數.這樣,一維對流-擴散水質方程的求解除就是實現本研究目的的關鍵.本研究採用的模型在現有的水質模型基礎上有所改進,因為其採用四點隱格式對水質進行預測,推求可接納污染物的環境容量值及為保證水質而限定的污染物濃度值,從而制定相應的水污染控制措施.為整體考慮各種污染物的情況,建議採用河流的污染指數進而推求綜合污染指數.總之,本研究為水質保護提供了科學的計算方法,該法對水污染控制及污水對河道水質的影響是實用有效的
  9. Abstract : in this paper, river water quality prediction is integrated with water pollution control measures. two parameters, water environmental capacity and pollution index are selected for pollution control measures. the objective is achieved after the development of simulation model using one - dimensional advection dispersion equation. the model algorithm and computer program is an improvement over the existing water quality models, since the model solution involves four point implicit upwind schemes for water quality prediction and pollution control measures at each grid point. model simulation results the assessment of water environmental capacity that yield the acceptable and realistic pollutants concentration in order to maintain water quality objectives. the pollution and overall pollution index of the river is suggested for integrating number of contaminants variables into one index. study provides the mathematical and scientific procedure for water quality management. the new approach is helpful for the water pollution control and to study the impacts of waste effluents on the river system for strategic planning purposes

    文摘:本文將水質預測及水污染控制措施有機地結合,選取水環境容量和污染指數作為水污染控制的參數.這樣,一維對流-擴散水質方程的求解除就是實現本研究目的的關鍵.本研究採用的模型在現有的水質模型基礎上有所改進,因為其採用四點隱格式對水質進行預測,推求可接納污染物的環境容量值及為保證水質而限定的污染物濃度值,從而制定相應的水污染控制措施.為整體考慮各種污染物的情況,建議採用河流的污染指數進而推求綜合污染指數.總之,本研究為水質保護提供了科學的計算方法,該法對水污染控制及污水對河道水質的影響是實用有效的
  10. Prior to the establishment of a new boiler product, the standards of smoke concentration and blackness for its initial discharge, and data on their testing should be filed with environmental protection authorities of cities under the jurisdiction of provincial people ' s governments

    鍋爐新產品定型前,其初始排放煙塵濃度和煙氣黑度標準及其測驗數據資料,應當報省轄市級以上人民政府環境保護部門備案。
  11. Based on related data of incidence of local fluoride epidemic and fluorine concentration in soils in china as seen in literature published in china, the relationship between soil environmental quality of fluorine and human health in china was reviewed and analyzed in the present paper, with the results that guideline on soil environmental quality of fluorine in relation to human health, including guideline on total and water soluble fluorine content of soils, as well as the assessing methods for predicting local fluoride epidemic, were established

    摘要根據全國已經報道的地氟病發生率和土壤氟的相關資料,對我國氟的土壤環境質量指標與人體健康關系的研究進行了總結與分析,探討了氟的土壤健康質量指標,包括我國土壤中全氟和水溶態氟的土壤環境質量指標確定和評價方法。
  12. Abstract many people have noticed the research of the ammonian compounds that exist in water all the tune since the environmental water quality is going to overnutrition. in the procedure of the environmental monitoring, the determination of the ammonian compounds especially the concentration of ammonia in the drinking water, surface water n food, workshop and clinic is very important

    =隨著環境水質趨于富營養化,測定水體中的氨氮研究一直為人們所重視,在環境監測過程中,氨氮含量的測定是一個非常重要的數據;在工業和環境控制的領域中,對氨氮的監測,特別是對于飲用水、地表水、食物、工廠車間及臨床分析中氨含量的測定顯得尤其重要。
  13. Main research contents and achievements of this thesis is as follows : l. this paper carries through particular test and analysis to the basic physical - chemical properties of gaojiawang palygorskite, an environmental mineral fibre, by xay, ir, tem, sem etc. this paper has also discoursed upon the development appliance research status in quo and directions of palygorskite. 2. according to the preceding surface modification research achievements to nonmetal mineral materials, the author combines the self characteristics of palygorskite such as the ratio of length and diameter, typical nano - rank particle diameter, big ratio surface area, well - developed crystal growth imperfection and lattice defect etc. the author also designs organising modification ortho - experimentation of palygorskite by adopting iso - propyl alcohol as thinner of wd - 51 and ndz - 401, and acquires the best craft parameters and craft conditions for gaojiawang palygorskite original ore organising modification, namely : wd - 51 concentration 1. 6 % ( wt % ), modification temperature 120 ?, and modification time 60 mins ; ndz - 401 concentration 2. 0 % ( wt % ), c modification temperature 120, modification time 80 mins

    在前人對非金屬礦物材料表面改性的基礎上,結合環境礦物纖維?坡縷石自身的特點(如:長徑比、典型的納米粒徑、大比表面積、發育的晶體生長缺陷和晶格缺陷等) ,通過對坡縷石有機化改性設計正交試驗,採用( ch _ 3 ) _ 2choh作為稀釋劑,獲得了採用wd - 51和ndz - 401對高家窪坡縷石原礦進行有機化改性的最佳工藝參數和工藝條件,分別為: wd - 51的濃度為1 . 6 ( wt ) ,改性溫度為120 ,改性時間為60min ; ndz - 401的濃度為2 . 0 ( wt ) ,改性溫度為120 ,改性時間為80min 。
  14. We should formulate energy - saving economic policies for the development of liquor industrial techniques as follows : to attach importance to energy - saving, environmental protection, the utilization of circular economy, bioengineering, solid distillation, storage, blending and flavoring, and the production and the determination of low - alcohol liquor ; to make limitation and elimination in lavish packing, the development of small - scale liquor enterprises, and the production and the sales of unpackaged liquor etc. ; and to strengthen governmental support and social concern on the development of liquor - making industry, to establish a unified, open, orderly and competitive liquor market, to perfect taxation policies and strengthen the taxation management, and to establish technical innovation system and increase production concentration ratio etc

    在白酒產業技術發展方向制訂節能技術經濟政策,開發提高節能、環保、循環經濟應用、生物工程、固態蒸餾、貯存、勻兌調味、低度酒的生產和分析檢測等技術;限制和淘汰過度包裝、規模以下白酒企業的發展、散裝白酒的生產和銷售等;加強政府對白酒產業的發展支持和社會的關注,建立全國統一、開放、競爭、有序的白酒市場,完善稅收政策、加強稅收征管,建立技術創新體系,增強白酒行業的創新能力,提高生產的集中度等。
  15. Through reforming the technologic process of separation and using combined depressants, the cyanide - free separation of lead - zinc had been achieved successfully without the decreases of their recoveries and concentration grades, so as to increase the environmental profit

    通過改造該選礦廠的工藝流程結構,並使用組合抑制劑,在不降低鉛鋅回收率和精礦品位的條件下,成功地實現了無氰鉛鋅分離,從而提高了環境效益。
  16. Abstract : the various kinds of incineration facilities such as liquid injection incinerator, rotary kiln incinerator, bubbling fluidized - bed incinerator and circulating fluidized - bed incinerator used for treating high concentration of waste organic liquor at home and abroad are described. by comparison of the characteristics of the above incinerators, it can be concluded that the bubbling fluidized - bed incinerator and the circulating fluidized - bed incinerator have remarkable advantages over the others in the aspect of environmental protection

    文摘:介紹了國內外高濃度有機廢液的焚燒處理裝置,即液體噴射焚燒爐、回轉窯焚燒爐、鼓泡流化床焚燒爐和循環流化床焚燒爐,闡述了各種焚燒爐的工作特點,通過比較得出,鼓泡流化床和循環流化床焚燒爐在環保方面具有突出的優點。
  17. Chemolithoautotrophic nitrifying bacteria have many unfavorable physiological characteristics, namely, slow growth, small biomass and susceptible to environmental factors. to remove high ammonia - nitrogen concentration in wastewater from refineries, we directly enriched nitrifying bacteria of activated sludge via optimizing enrichment conditions ( temperature > phu nh4 + - n concentration ). the results showed that the number of nitrifying bacteria after 6 weeks enrichment increased 32. 8 times and nitrification rate improved 2. 76 times than that before enrichment

    實驗結果表明,在ph7 . 7 8 . 5 、 28 , 150rpm振蕩暗培養的條件下,通過不斷添加富集培養基,經過6周的培養后,可以使硝化細菌的數量增加32 . 8倍,硝化速率提高2 . 76倍,達到了富集的目的。
  18. Standard guide for ranked set sampling : efficient estimation of a mean concentration in environmental sampling

    分等級抽樣的標準指南:環境抽樣中平均濃度的有效評估
  19. Note : guide gas cable of cable liquid - level transmitter adopts high - performance environmental protection material such as import abrasion - proof, weak acid - proof concentration, anti - low temperature, and may apply to food, medicine and other survey field

    注:纜式液位變送器的導氣電纜採用進口耐磨耐弱酸抗低溫等高性能的環保型材料,可用於食品醫藥等測量現場。
  20. Pursuant to the united states toxic substances control act, additional disposal requirements will only be required for soils contaminated with pcb at a concentration greater than 50mgkg. therefore, according to the findings and recommendations in the environmental impact assessment study for the project, the pcb contaminated soil in this project has been disposed of at the southeast new territories landfill

    根據美國《有毒物質控製法案》 ,泥土的多氯聯苯含量如超過每千克50毫克,才須實施額外的處置規定。因此,我們根據該工程項目的環境影響評估研究結果和建議,把受多氯聯苯污染的泥土棄置在新界東南堆填區。
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