氮濃度 的英文怎麼說

中文拼音 [dànnóngdù]
氮濃度 英文
nitrogen concentration
  • 氮 : 名詞[化學] nitrogen （7號元素, 符號n）
  • 濃 : 形容詞1. （液體或氣體中所含的某種成分多; 稠密） dense; thick; concentrated 2. （程度深） （of degree or extent） great; strong
  • 度 : 度動詞[書面語] （推測; 估計） surmise; estimate
  • 濃度 : potency; thickness; concentration; consistence; strength; consistency; density
  1. Effects of removal of the shoot apex and leaf wounding on nitrogen uptake and nicotine production were studied with tobacco plants grown in sand or hydroponic medium under the controlled conditions

    摘要採用砂培和營養液培養方法，研究了在營養生長階段切除頂芽和葉片損傷對煙株生長、體內煙堿濃度、氮濃度及吸氮量的影響。
  2. A past of high nh4 ( superscript + ) - n source water not biological treated was fed into bac filter after conventional treatment to enhance the nh4 ( superscript + ) - n concentration of bac filter influent water

    將一部分未經生物預處理的高氨氮原水經常規處理后進入生物活性炭濾池以提高活性炭濾池進水氨氮濃度。
  3. Influence of glucose - insulin potassium on the content of amino acid and the concentration of nitric oxide in rat brain after acute cerebral ischemic reperfusion

    極化液對急性腦缺血再灌注大鼠腦內氨基酸和一氧化氮濃度的影響
  4. ( 3 ) the treatment result of no2 - n is good. when the influent concentration of no2 - n is 0. 01 ~ 2. 23mg / l, the effluent is less than o. lomg / l and the influence of temperature, hydraulic loading the total ratio of gas and water is small

    （ 3 ）生物濾池對亞硝酸鹽氮的去除效果比較好，試驗期間，水源水中亞硝酸鹽氮濃度范圍為0 . 01 2 . 23mg / l ，出水濃度一般低於0 . 10mg / l ，水溫、濾速、氣水比對亞硝酸鹽氮的去除無明顯影響。
  5. The height of media 、 the ratio of gas to liquid 、 hydraulic loading 、 the organic and ammonia loading of influent are the key factors influence the performance of one - stage aerobic baf. the conclusions of the experiment are as following : the best height to remove the organic matter and ammonia is at 60cm 、 120cm from the influent side respectively. the best ratio of gas to liquid is 3 : 1 4 : 1 ; the organic and ammonia loading of influent have litlle influence on the performance of one - stage aerobic baf when the concentration are low ; whe the ratio of gas to liquid is 3 : 1, the ammonia loading is blow 0. 87kgnh _ 4 ~ + - n / m ~ 3. d, the enfluent concentration of ammonia is blow 5mg / l which satisfies the water reuse standard ; at different organic loadings, the removal of organic matter keeps 35 % 45 %. hypothermia is unfavourable to nitrification for one - stage aerobic baf to removel ammonia, the influent concentration of ammonia can ’ t satisfy the water reuse standard

    試驗表明:對有機物的去除主要發生在進水端60cm內，對氨氮的去除主要發生在進水端120cm內;曝氣生物濾池運行的最佳氣水比為3 : 1 4 : 1 ;在進水有機物和氨氮濃度比較小時，水力負荷對其去除率影響不大;在氣水比為3 : 1 ，進水氨氮負荷小於0 . 87kgnh4 + - n / m3 （濾料） ? d時，出水氨氮小於5mg / l ，滿足回用水的要求;在不同有機負荷下，有機物去除率保持在35 % 45 % 。
  6. Putting the potassium permanganate into the filter can improve its effect, the removal of organics and ammonia is increased, the influent concentration can satisfy the water reuse standard. but the turbidity of influent is unsatisfactory. the c / n ratio is the key factor to influence the nitrogen - removal of the anoxic / aerobic two - stage baf when the reflux ratio 、 hydraulic loading and the ratio of gas to liquid in aerobic filter are fixed. the anoxic / aerobic two - stage baf has a good removal of organics at different c / n ratio when the reflux ratio is 2, hydraulic loading is 2. 55m ~ 3 / m ~ 2 ? h and the ratio of gas to liquid in aerobic filter is 3 : 1. the influent concentration of organics is blow 7mg / l. from the beginning to 30cm of the anoxic filter, the removal of the organics is significant ; as the c / n ratio increasing, the influent concentration of ammonia is decreasing. when the c / n ratio is 3. 60, the enfluent concentration of ammonia is 3. 05mg / l which satisfies the water reuse standard. when the c / n ration is less than 3. 60, because of the imperfection

    迴流比為2 : 1 ，水力負荷為2 . 55m3 / m2 ? h ，好氧柱氣水比為3 : 1時試驗表明:不同的c / n （ 1 . 05 7 . 45 ）下，兩級曝氣生物濾池對有機物有很好的去除作用，出水有機物濃度小於7mg / l ，其中在缺氧柱進水端30cm內對有機物的去除最為明顯;隨著c / n的增加，系統出水氨氮濃度降低，當c / n為3 . 60時，出水氨氮濃度降到3 . 05mg / l ，已經滿足回用水的氨氮標準; c / n < 3 . 60時，因為缺氧柱的不完全反硝化，體系中硝酸鹽氮和亞硝酸鹽氮發生積累影響了好氧柱的硝化反應使氨氮降解效果較差;系統對總氮的去除隨著c / n的增加而增加，當c / n為3 . 60時，出水總氮已經降到11 . 18mg / l ，滿足回用水的要求。
  7. 5. the dynamic change of the concentration of three kinds of nitrogen indicated that there was an positive relationship between the concentration of nitrogen in the surface water and n application amount

    田表水中三氮濃度的動態變化情況表明田表水體中氮素的濃度與施氮量有極其明顯的正相關。
  8. Soil nitrate concentrations were estimated based ontdr ecw and a simple linear calibration of ecw vs nitrate concentrations and then predict the soil column nitrate

    研究表明，利用時域反射技術得到的土壤溶液電導率計算的硝態氮濃度隨溶液電導率以及土壤含水量的變化而變化。
  9. Determination of ammonia - nitrogen by ion selective electrode analysis

    離子選擇電極法測定氨氮濃度
  10. Study on dynamic change of three kinds of nitrogen in surface water of paddy field

    稻田田面水中三氮濃度的動態變化特徵研究
  11. Start - up experiment on nitrification of mid - low ammonia concentration wastewater in sbr biofilm reactor

    反應器中低氨氮濃度廢水亞硝化啟動試驗研究
  12. This is not the same as the views of " the concentration of no3 - is more than that of nh4 + ' s "

    這不同於「地表水體中硝態氮的濃度遠遠大於銨態氮濃度」的看法。
  13. But the concentration of nh4 + decreased to the very low level in 7 - 10 days after fertilizer was applied

    而田表水層中銨態氮濃度在施肥后第7 ? 10天左右均降至很低水平。
  14. Study on nitrogen concentration and deposition amount in wet deposition in typical wetland ecosystem of sanjiang plain

    三江平原典型濕地系統濕沉降中氮濃度及沉降量初步研究
  15. A new method to determine the concentration of ammonia - nitrogen by ammonium ion selective electrode has been introduced in this paper

    摘要本文介紹一種新型的測量氨氮濃度的方法銨離子選擇電極分析法。
  16. Ambient air quality - standard method for the measurement of the concentration of nitrogen dioxide and nitrogen monoxide by chemiluminescence

    環境空氣質量.利用化學發光測量二氧化氮和一氧化氮濃度的標準方法
  17. As in any medication for erectile dysfunction, antioxidants raise levels of nitric oxide, which in turn relaxes blood - vessel walls

    就像任何治療勃起障礙的藥物一樣，抗氧化物提高一氧化氮濃度，進而放鬆血管壁。
  18. 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。
  19. After experiment on bw from beijing - chengdu 1364 train on chengdu railway station, we draw a conclusion : the bw quality with the characters of three highs : high concentration of organic matters ; high concentration of ammonia nitrogen and high concentration of suspended substances

    通過調研資料和在成都鐵路局以北京成都1364次列車所卸糞便污水的水質實驗，得出其特點是「三高」 ：高氨氮濃度、高有機物濃度，高懸浮物濃度。
  20. The basic experiment showed the enriched nitrifying bacteria can quicken the nitrifying biofilm formation, strengthen it to adapt the high salted water and reduce nh3 - n from 5 mg / l to 0. 7mg / l under a short hrt condition ( 1. 2 hour )

    在進水原水溶解氧在smg / l以上，而氨氮濃度在lmg / l以下時，可以採用不曝氣充氧方式運行，出水氨氮等指標可以達到o . smg / l以下，但出水溶解氧偏低。
分享友人
分享到 Line

分享到臉書