酸性降水 的英文怎麼說

中文拼音 [suānxìngjiàngshuǐ]
酸性降水 英文
acid precipitation
  • 酸 : 酸構詞成分。
  • 性 : Ⅰ名詞1 （性格） nature; character; disposition 2 （性能; 性質） property; quality 3 （性別） sex ...
  • 降 : 降動詞1. （投降） surrender; capitulate 2. （降伏） subdue; vanquish; tame
  • 水 : 名詞1 （由兩個氫原子和一個氧原子結合而成的液體） water 2 （河流） river 3 （指江、河、湖、海、洋...
  • 酸性 : [化學] acidity; acidness; acerbic; acidic property酸性材料 acid material; 酸性促進劑 acid acceler...
  1. The mineralization temperature is in a range of 90 ~ 300, and the mineralization fluid is a combination of slightly acidic - slightly alkalic precipitations, seawater and magmatic water

    其成礦溫度在90 ~ 300之間，成礦流體為低鹽度的弱酸性弱堿性大氣降水、海水和巖漿水的混合溶液。
  2. Abstract : in ureide - transporting legumes ， ureides ( allantoin and allantoic acid ) are major transportform of biological fixed nitrogen. the distribution ， properties ， structure and regulation of plant allantoinase were reviewed in detail. the advances in the recent studies on allantoate amidohydrolase and ureidoglycolate amidohydrolase were introduced. and the works desired to be done were pointed out

    文摘:全面綜述植物酰脲降解代謝酶的研究現況，概述植物尿囊素酶的分佈、性質、結構，以及調節控制，並簡介植物尿囊酸酰胺水解酶和脲基乙醇酸酰胺水解酶的研究近況，同時指出待研究的方向。
  3. It can germinate at 0 ? and develop at 3 - 5 c even suffer from chilliness of - 21 c. at the fifth or sixth year, it ablooms at july, fruits at august or september. when the seeds are scattered by wind, the plant turn to death

    其自然生長環境的土壤偏酸性，有機質含量極低，氣候多變，最高月平均溫度3 5 ，最低月平均溫- 19 - 21 ，年降水量800mm ，無霜期僅有50d左右。
  4. The rising temperature in the cave, the lamp - light ' s toasting and the convictive air made the humidity of the whole or part of the cave descend, which made the speleothem sightseeing dry, cracked and weathering. the acid air from the outer and the highly dense co2 would cause acid erode action to the speleothem sightseeing with water vapor. the existence of lamp - light offered a good chance for the lightloving plant to grow up, thus a lot of bryophyte covered the speleothem sightseeing

    洞穴升溫、燈光的烘烤及空氣的對流致使洞穴濕度或局部濕度降低，使景觀產生乾裂、風化；氣流帶入的洞外酸性氣體及高濃度co _ 2在高濕的條件下，結合水汽對洞穴景觀產生酸侵蝕作用；燈光的存在為燈光植物生長提供了條件，使大量的苔蘚類植物生長于鐘乳類景觀的表面；洞外大氣粉塵的進入，給洞穴帶來了非常嚴重的破壞，粉塵在洞內高濕的環境下大量沉降，附著于鐘乳類景觀的表面，致使受污染面發黑，毫無光澤。
  5. The paper reports concisely the technology development of pretreatment and subsequence treatment of acidic water stripping installation now, the technology of pretreatment of acidic water include : remove waste gas, waste oil, suspending solid, effluvium and safety measure taken, the technology of subsequence treatment of acidic water include : the technology of return use of srripped water and the technology of sbr and the technology of ion exchange of denitrification, especially the proprietary technology of fripp in the field

    摘要簡述了目前煉油廠酸性水汽提裝置的上下游處理技術及其研究進展，上游技術主要包括：酸性水降壓脫氣、除油、脫懸浮物、惡臭氣體脫臭和應採取的安全防護措施；下游技術主要包括：汽提凈化水的回用、 sbr法、離子交換法除氨等工藝，並簡要介紹了撫順石油化工研究院在本領域上的專有技術。
  6. This point correspondence saturated adsorptive capacity, may use for to judge the monolayer and the polymolecular layer adsorption point of demarcation. using the aqua fortis, the hypochlorous acid and the ammonia water have carried

    利用濃硝酸、次氯酸和氨水對活性炭的表面進行了改性並應用於飲用水中對三氯甲烷等有機物的吸附，可明顯降低水樣中三氯甲烷的含量，使水質達到國家標準規定的指標要求。
  7. The silver colloid in the composite material never changed the ability of zp to tune the potential of redox mediators. but the ability of the zirconium phosphate to adsorb neutral red and the redox reaction ability of this phenothiazine dye were enhanced significantly in the composite film due to the nanosize silver colloid

    磷酸鋯降低了納米銀膠粒在水溶液中的聚集，提高了其催化活性，而銀膠粒保持了磷酸鋯對介體的電位調制能力，並大大的提高了磷酸鋯對堿性染料的吸附能力和染料分子的活性。
  8. Sds - page results showed that as to mut + recombinant highest yield was obtained after 4 days inducing and with the culture time prolonged it reduced. pokeweed antiviral protein gene expressed well when methanol concentration reached 10g / l. pokeweed antiviral protein obtained high yield in thin acidic culture medium ( ph6. 0 - 6. 4 ) and its quantity in total mass of secrete protein exceeded 30 %

    Sds - page分析結果表明， mut ~ +組菌株在甲醇誘導第四天後pap在培養液中積累量達到最高水平，延長培養時間會導致產量下降；在10g / l的甲醇濃度誘導下， pap的表達量達到最高；培養基ph值在偏酸性條件下（ 6 . 0 - 6 . 4 ） pap的表達量都維持在較高的水平。
  9. They can also be used for fiber sizing, textile finishing, the reinforcing agent for cement and ceramics, and the preparation of various kinds of latex paints, and all kinds of special adhesion agents. the products of vinyl acetate - acrylic ester copolymer emulsion, which have overcome some defect of homopolymerized products, are newly developed. the modified emulsion has stronger water resistance, better flexibility, and lower glass state temperature

    醋-丙共聚系列乳液產品是針對均聚產品的某些缺陷而發展起來的新膠種，它通過醋酸乙烯與丙烯酸脂類共聚改性，提高膠粘劑的耐水性和柔韌性，降低共聚物的玻璃化溫度，使產品對一些均聚乳液難以粘接的材料具有良好的粘接性能，主要產品有：寶麗板膠鋁箔紙膠塑板膠等。
  10. Because there are a great quantity ' s heterotrophic bacteria in the breeding pool, which will have the repulsion action to the insufficient quantity ' s nitrifier and prevent the nitrification, the situation will bring the accumulating of nitrite which is the middle substance of nitrification in water, the long term accumulated nitrite can debase fish and shrimp ' s disease - resistant and decrease the growth and even die

    由於養殖池中存在大量的異養菌，受到異養性細菌排斥，本身無足夠數量的硝化菌，硝化作用往往受阻，結果就會引起硝化作用的中間產物亞硝酸鹽在水體內的累積、亞硝酸鹽長期蓄積會使魚蝦等抗病力降低、生長受阻、嚴重者中毒死亡。
  11. The paper discusses dynamical conditions of the supercritical ore - forming fluid system based on study of regional geological background and analyses of physiochemical conditions of ore - forming process and puts forth the ore - forming mechanism : upper mantle uplift - mingling of meteoric water and magmatic hydrothermal fluid separated from acidic magma under tensile or transitional tensile environment - water / rock reaction - transportation - chemical coupling ore precipitation

    在分析超臨界成礦流體系統形成的區域地質背景和研究成礦物理化學條件的基礎上，探討了超臨界成礦流體系統形成的動力學條件，提出該系統的成礦機理：與燕山晚期酸性火山侵入巖漿有關的金銅礦床是在上地慢隆起、張性或向張性過渡背景下形成的，酸性巖漿經熔體流體分離作用形成的巖漿熱液與大氣降水混合，經水巖作用等復雜的輸運和化學反應耦合過程的動力學產物。
  12. The acidic liquid related to decomposition of organic mater during hydrocarbon enrichment in the late diagenesis, and m eteoric - waters during epidiagenesis, had resulted in dissolution of detrital feldspars and carbonate cements, which contributed a better retention of reservoir quality for the sandstones

    溶蝕作用是砂巖物性改善的主要原因，尤其是晚期成巖階段，在富含有機酸和無機酸酸性孔隙流體的作用下形成一定量的次生溶蝕孔，使儲層砂巖物性得到一定改善；在表生成巖階段，由於大氣降水的介入，儲層物性再次得以改善。
  13. Mongolica young stand, secondary natural forest, and the mixed forest of larix olgensis and fraxinus mandshurica rupr. countermeasures for controlling soil degradation were also recommended. the study got following results : ( 1 ) from young stand to mid - age of larix olgensis, with the closure of canopy and the decrease of undergrowth vegetation cover, soil acidity, enzyme activity, total inorganic phosphorus, available k, soil moisture and total porosity decreased significantly ; while soil organic matter content, humus component content, the amount of three main types of microbes, acid phosphatase activity, and bulk density in rhizosphere soil and non - rhizosphere soil increased with the increase of the amount of forest floor litter ; from mid - age stand to near mature stand, with the decrease of stand density and crown cover as well as the restoration of undergrowth vegetation after preliminary thinning, soil organic matter content, fulvic acid, exchangeable acidity, exchangeable aluminium, neutral phosphatase activity, total amount of inorganic phosphorus, the amount of actinomycetes, soil moisture, and total porosity in rhizosphere soil and non - rhizosphere soil apparently increased ; from near matu re stand to mature stand, soil activity acidity, organic matter content, humus component content, available phosphorus, total amount of amino acid, available k, soil enzyme activity, soil moisture, and total porosity in rhizosphere soil and non - rhizosphere soil decreased, but total phosphorus, soil acidity ( in particular, exchangeable aluminium ), and bulk density increased

    結果表明： （ 1 ）從落葉松幼齡林到中齡林，隨著林冠的郁閉和林下植被蓋度的急劇下降，林地土壤酸度、土壤酶活性、無機磷總量、速效鉀、土壤水分含量、總孔隙度呈明顯下降趨勢，而根際和非根際土壤有機質含量、腐殖質各組分含量、三大類微生物數量、酸性磷酸酶活性和土壤容重隨著凋落物的增加呈明顯上升趨勢；從中齡林到近熟林，由於撫育間伐，林分密度及郁閉度下降，林下植被蓋度逐步得到恢復，根際與非根際土壤有機質含量、富里酸、交換性酸、交換性鋁、中性磷酸酶、無機磷總量、放線菌數量、土壤水分含量、總孔隙度呈明顯的上升趨勢；從近熟林到成熟林，隨著林齡的增大，根際與非根際土壤活性酸、有機質含量、腐殖質各組分含量、有效磷含量、氨基酸總量、速效鉀、土壤酶的活性、土壤水分含量和總孔隙度呈下降趨勢，而根際與非根際土壤全磷含量、土壤酸度（特別是交換性鋁）和容重呈增加趨勢。
  14. When sparsely - planted rice overgrew its earing period, light intensity in the mid - lower part increased, photosynthesis prolonged, activity of nitrate and peroxide decreased, protein content increased by more than 50 %, velocity of leaf ageing slowed, but accumulation of dry matter of grain accelerated and 1000 - grain weight increased too

    摘要稀植栽培的水稻，抽穗后田間表現為中下部光強明顯增加，光合作用時間延長，硝酸還原酶和過氧化物酶活性降低，蛋白質含量增加50 %以上，葉片衰老延緩，籽粒干物質積累加速，千粒重提高。
  15. To solve the problem of adverse influence on the environment exerted by the residue dye liquid from traditional dyeing of wool with acid mordant dyes by after - chroming, and to lessen the pressure of chromium - containing waste water treatment, the dyeing method was modified by adopting two - bath dyeing technique in which the initial dyeing liquid and mordant dyeing liquid could be used in the recycled way, thus saving dyestuff and reducing the drainage of chromium - containing waste water

    摘要為解決傳統羊毛酸性媒介染料后媒法染色殘液對環境的影響，減輕含鉻廢水處理壓力，採用二浴循環染色技術對傳統羊毛酸性媒介染料后媒浴染色法進行改進，改進后的染色新工藝可以做到初染液及媒染液循環使用，節約了染料，並降低了含鉻廢水的排放。
  16. It is indicated that the hydration process of cement - based materials with slag, fly ash and silica fume is different in some degree from that of neat cement because of the difference in mineral structure and hydration mechanism. the periods of accelerating, decelerating and terminating are prolonged and hydration reaction decelerates. the second peak of rate curve of the heat evolution could be divided into two small peaks, which are contributed to the hydration of clinkers and mineral mixtures at the temperature of 30 but when temperature comes to 50, the two small peaks combine into one and the reaction accelerates

    結果表明，與硅酸鹽水泥相比，由於礦物摻合料與水泥熟料在活性和水化機理上的差異，水化歷程有較大的改變：多組分體系誘導期、加速期和衰減期延長，水化反應速率明顯降低；低溫時，水化放熱速率曲線上的第二放熱峰細化成分別對應于熟料和礦物摻合料水化的兩個小峰；高溫時，反應速率加快，雙峰合併；進一步研究發現，摻合料的種類與摻量對水化歷程也有較大的影響；建立了適用於多組分水泥基材料不同水化階段的水化動力學方程。
  17. Injury - induced reduction of acidic fibroblast growth factor levels in the distal parts of rat sciatic nerve

    在老鼠的末梢的部分的酸性的纖維原細胞生長因素水平的勸誘傷害降低髖部的勇氣。
  18. Experts from the atmospheric composition observation and service centre of cma say, according to the acid rain observation network, the frequency of acid rain of 19 provinces in china is 100 % in this year ' s rainy season ; the rain in late august in beijing was all acid rain, with a high proportion of strong acid rain, which has never happened since 1993 ; strong acid rain occurred for five times in july when it rained frequently in beijing

    中國氣象局大氣成分觀測與服務中心的專家介紹，酸雨觀測網顯示，今年雨季，全國有19個省市酸雨頻率為100 % ，北京地區8月中下旬的降水過程均為酸性降水，強酸性降水比例很高，而這是自1993年以來觀測中沒有過的，同時， 7月的頻繁降雨中，監測到5次降雨達到強酸性。
  19. The authour investigate the dosing conditions and effect of the pac to the huanghe water - source, which includes the following four parts : the selection of the pac ; the confirmation of dosing scheme and effect of the pac ; the research of application of potassium permanganate in combination with pac ; the research of the pac ' s modification and the modified effectiveness. the experiment is mainly carried out on the pilot system in the jieyuan water plan of tianjin. the results of the reseach include the following : l ) the pac from zunhua plant is selected as the better carbon for the source water of tianjin through the experiment ; 2 ) through the pilot experiment we conclude that the pac ' s best adding point is the mixing tank and the better dose is 10mg / l, on which the codmn of filtered water can be decreased to 40 % and the effluent have no problem of odour and color ; 3the adsorbing experiment show that pac mainly adsorb the organic matters which molecular wt., distribution between 500 and 3000, and can adsorb organic matters whose molecular wt., distribution are bigger than 6000 if the dose of it is adequent ; 4 ) pac together with potassium permanganate can remove the organic matter more effectively than each of them alone, and reduce the rising trend of turbidity of the flotation ' s effluent due to adding pac ; 5 ) the thesis made a research on the surface properties and the adsorbing capability of the modified carbon by oxidizer : the modified carbon with 20 % h2o2 can remove more organic pollutants than the untreated one by 12 % when we add a higher dose of coagulant ; 6 ) the modification of reduction and loading metal ions are also sttldied, and drow the following conclusions : the modified carbon with 5 % ammonia can enhance the organic matter ' s removal effectiveness by 10 % to the tianjin source water than the untreated one, and the modified one with loading metal ion remove the organic matters from the tianjin source water better ( 8 % ) than the untreated one due to the strong affinity betwween the humic acid and copper ion

    本文的實驗主要是在天津芥園水廠的中試系統上完成的，論文的成果和結論主要包括： 1 ）通過靜態實驗選定河北遵化活性炭廠生產的煤質炭為適合天津原水的炭種； 2 ）中試實驗確定粉末活性炭的較佳投加點為混合池投加，較佳投加量為10mg l ，此時可使濾后水的cod _ （ mn ）降低40 ，且可較好地控制濾后水的嗅味和色度； 3 ）初步確定粉末活性炭對原水中有機物的吸附主要集中在分子量在500 - 3000范圍內，投量增大時可吸附部分分子量大於6000的有機物4 ）中試實驗表明：粉末活性炭與高錳酸鉀聯用可取得較兩者單獨應用時對有機物更好的去除效果，且對因投加粉末活性炭而造成的氣浮出水濁度升高有一定的改善作用； 5 ）研究並初步確定氧化改性對粉末活性炭表面性質和有機物的去除效果的影響：粉末活性炭的氧化改性會使其表面的酸性官能團大量增強，表面極性增加；經20的過氧化氫改性的活性炭在增大混凝劑投加量（ fecl _ 3投量為15mg l ）時對有機物的總體去除效果較原活性炭提高12 ， 1次氯酸鈉改性活性炭對有機物的去除效果較原活性炭提高6 ； 6 ）研究並初步確定還原改性、負載金屬離子對原水中有機物的去除效果的影響：經5氨水改性的活性炭可提高天津源水中有機物的去除率達到10 ；負載銅離子后的活性炭可提高對腐殖酸類物質的去除能力，一般可提高8左右。
  20. There are two series of cu, au deposits, the stratiformed deposits and the intrusive - related ones in the mineralization belt of the middle and lower reaches of the yangtze river area. comparative studies on forming geodynamic backgrounds, geological and geochemical conditions of the ore - forming systems have been undertaken in this paper. the stratiformed deposits were formed in hercynian period by submarine exhalation - sedimentation sedex of hot brine through the synchronous basement faults in a tensional environmental, and the intrusive - related deposits were formed in yenshanian in a tensional or a transitional period to tensional environment during the upper mantle doming by water - rock interaction and complex transport - chemical reaction dynamic processes, the ore - forming fluids were mainly magmatic water from melt - fluid partition and some meteoric water

    成礦流體系統形成的地球動力學背景及地質地球化學條件對比研究表明，賦存於石炭系中的層狀銅金礦床是海西期拉張背景下熱鹵水沿同生斷裂經噴流作用形成的海底噴流熱水沉積礦床與燕山期中酸性侵入巖有關的銅金礦床是在上地幔隆起張性或向張性過渡背景下形成的，是中酸性巖漿經熔體流體分離作用形成的巖漿熱液與大氣降水混合，經水巖作用等復雜的輸運和化學反應耦合過程的動力學產物。
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