酸性團 的英文怎麼說

中文拼音 [suānxìngtuán]
酸性團 英文
acidic group
  • 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 ...
  • 團 : Ⅰ名詞1 （團子） dumpling 2 （成球形的東西） sth shaped like a ball 3 （工作或活動的集體） group; ...
  • 酸性 : [化學] acidity; acidness; acerbic; acidic property酸性材料 acid material; 酸性促進劑 acid acceler...
  1. On the lower shelf five vertical breakfast plates, six horizontal breakfast saucers on which rested inverted breakfast cups, a moustachecup, uninverted, and saucer of crown derby, four white goldrimmed eggcups, and open shammy purse displaying coins, mostly copper, and a phial of aromatic violet comfits. on the middle shelf a chipped eggcup containing pepper, a drum of table salt, four conglomerated black olives in oleaginous paper, an empty pot of plumtree s potted meat, an oval wicker basket bedded with fibre and containing one jersey pear, a halfempty bottle of william gilbey and co s white invalid port, half disrobed of its swathe of coralpink tissue paper, a packet of epps s soluble cocoa, five ounces of anne lynch s choice tea at 2 - per lb. in a crinkled leadpaper bag, a cylindrical canister containing the best crystallised lump sugar, two onions, one the larger, spanish, entire, the other, smaller, irish, bisected with augmented surface and more redolent, a jar of irish model dairy s cream, a jug of brown crockery containing a noggin and a quarter of soured adulterated milk, converted by heat into water, acidulous serum and semisolidified curds, which added to the quantity subtracted for mr bloom s and mrs fleming s breakfasts made one imperial pint, the total quantity originally delivered, two cloves, a halfpenny and a small dish containing a slice of fresh ribsteak

    中層放著一隻盛了胡椒粉的有缺口的蛋杯，飯桌上還擺著那種鼓狀食鹽瓶，用油紙包著的四顆粘成一團的黑色橄欖，一聽李樹商標肉罐頭36的空罐兒，墊著纖絲的橢圓形柳條筐里是一隻澤西37梨，喝剩下的半瓶威廉吉爾比公司38釀造的藥用白葡萄酒裹在瓶子上的粉珊瑚色薄繪紙已剝掉了一半，一包埃普斯公司製造的速溶可可一隻縐錫紙袋裡裝著安妮林奇公司39出品的五英兩特級茶葉，每磅二先令一隻圓筒形罐子，盛著優質結晶角沙糖兩顆蔥頭，較大的那顆西班牙種的是完整的，較小的那顆愛爾蘭種的已經切成兩瓣兒，面積擴大了，氣味也更沖鼻了一罐愛爾蘭模範奶場的乳酪，一隻褐色陶罐，盛著四分之一品脫零四分之一兌了水並變酸了的牛奶由於炎熱，它已化為水酸性乳漿與半固體凝乳，再加上布盧姆先生和弗萊明大媽40作為早餐消費掉的部分，就足夠一英品脫了，相當于原先送來的總量兩朵丁香花蕾，一枚半便士硬幣和盛有一片新鮮排骨肉的一個小碟子。
  2. Consequently, with increasing mmt content, the tensile strength and young ' s modulus of hdpe - g - aa / mmt nanocomposites increased, while that of hdpe / mmt composites decreased. moreover, the addition of mmt to hdpe - g - aa decreased the melting temperature and the degree of crystallization of the matrix. these changes may be attributed to high interfacial adhesion between hdpe - g - aa matrix and exfoliated clay, which reduces the mobility of crystallizable pe chain segments, and subsequently reduces the crystallization ability

    研究結果表明： mmt在hdpe中不能達到納米級分散，而在hdpe - g - aa中， mmt能以插層型利剝離型的結構存在，這主要是由於極性的丙烯酸接枝在hdpe上提高了後者的極性，而且能與mmt上的活性基團進行化學反應，從而提高了pe鏈進入mmt層間的可能性，使mmt在基體中達到納米級分散。
  3. [ objective ] heparin is linear polysaccharides consisting of repeating disaccharide unit backbones of n - acetyl - d - glucosamine that is linked to d - glucuronic acid. the disaccharide repeat unit can be modified to include n - and o - sulfation ( 6 - o and 3 - o sulfation of the glucosamine and 2 - o sulfation of the uronic acid ). these specific sulfate patterns are involved in the interaction of heparin with other molecules

    [目的]肝素是由n -乙酰葡萄糖胺與d -葡萄糖醛酸以1 4糖苷鍵連接起來的重復二糖單位組成的線性多糖，葡萄糖胺可帶有n -硫酸基團，可在c6上形成0 -硫酸酯，帶有硫酸基團的獨特結構參與了肝素與其他分子的相互作用。
  4. In this paper we studied the intercalation behavior of a new host matrix of x = l of zirconium proline - n - mtthyl phosphonate - phosphate ( a - zpmpp ), we successfully introduced butylamine heptylamine decanylamine ethanolamine diethylenetriamine ( 2e3a ) triethyleneteriamine ( 3e4a ) and tetrathyleneoctamine ( 4e5a ) guest molecules into a - zpmpp interlayer space. the intercalation complex were characterized by ir spectrum x - ray diffraction and tg - dsc thermal analysis, it has been found that a - zpmpp possess different intercalation behavior from a - zrp. because of the bulk of proline group, it affected the amount of guest molecule, mono - alkylamine form mono - molecule layer in the interlayer space, butylamine, decanylamine and ethanolamine form mono - layer and the carbon chain form 90 degree ordered assembly with the zirconium floor of a - zpmpp, every host molecule absorbed 0. 5 guest molecule

    本文報道首次以x ? l的層狀（脯氨酸十一甲基磷酸一磷酸氫）鉛（ a zpmpp ）為主體底物，成功地將客體分子：正丁胺、正慶胺、正癸胺、乙醇胺、二乙烯三股、三乙烯四胺、四乙烯五股插入層狀化合物a zpmpp的層間，通過紅外光譜（ ir ） 、 x射線衍射（ xrd ） 、熱重分析（ tg dsc ）等手段對插層復合物進行結構表徵，結果表明： x ? l的層狀（脯氨酸件一甲基磷酸一磷酸氫）鉛具有不同於無機磷酸結的插層性能，由於層間脯氨酸基團的體積較大，影響客體分子進入的數量，胺分子在層板間取單層排列。
  5. Through the analyzing the macro - structure to micro - structure, the author considers that retarding mechanism of citric acid is that citric acid and ca in the gypsum form the complexant ion, and hinder the crystallization center of dihydrate crystal bigger ; that of sodium tripolyphosphate is that it combined with ca, hinders the dissolve of hemihydrate. formation and growth of crystallization center ; that of bone glue is the glue - protection and chemical absorption action of active group, which also retards the formation and growth of crystallization center

    通過宏觀到微觀的分析，筆者認為，檸檬酸的緩凝作用的原因主要在於檸檬酸與鈣形成絡合離子，影響了二水石膏晶體的晶核長大過程；多聚磷酸鈉與鈣形成某種復鹽，對于石膏晶體的溶解、成核和長大過程均有強烈的阻礙影響；骨膠則在於膠體對半水石膏的包裹和活性基團的化學吸附，使二水石膏晶體的成核和長大困難。
  6. In this paper, pan based metal gradient composites films ( pmgcf ) were prepared by electrochemical reduction. the effect of polymer matrix on pmgcf and preparation and its forming mechanism of pmgcf were invested, they are as follows : lacrylonitrile - methyl - methacrylate copolymer, acryonitrile - itaconic acid copolymer, acrylonitrile - methyl methacry late - sodium allyl sulfonate terpolymer have been synthesized seperately in order to analyze the effects of the mma monomer unites and the hydrophilic unites of acryonitrile terpolymer on the process of copper deposition in polyacrylonitrile - based metal gradient composite film ( pmgcf ) as well as the flexibility of the film

    其內容如下： 1通過合成的丙烯腈?甲基丙烯酸甲酯二元共聚物（ p （ an - mma ） ） ，丙烯腈?亞甲基丁二酸二元共聚物（ p （ an - ita ） ） ，丙烯腈-甲基丙烯酸甲酯?丙烯磺酸鈉三元共聚物（ p （ an - mma - as ） ）分別作為基體制備了聚合物基金屬梯度復合膜材料（ pmgcf ） ，以分析加入的mma基團和親水性基團對pmgcf沉積層中金屬銅的梯度分佈形態和膜的柔韌性的影響。
  7. Chloroplast phosphoprotein were first found in thylakoid membranes by bennett o the attachment or removal of a phosphate group from a protein may have profound effects on that protein ' s activities and properties, the reversible phospharylation of the membrane protein in thykaloid is a dymanic equilibrium process

    而bennett （ 1977 ）發現的類囊體膜蛋白可逆磷酸化已成為近年研究的熱點之一，蛋白質連上或是移去磷酸基團都將強烈影響蛋白質的生理活性和性質，這需要類囊體膜蛋白激酶和磷酸酯酶的參與。
  8. The wet plating method permits to improve the adhesion of plating layers by treating the surface of polymers with an acid to generate the concavo - convex and forming the polar functional groups ( see, metal surface compendium, plastic plating techniques, page 13 )

    濕鍍方法可以改進鍍層的粘附能力，其方法是用酸處理聚合物表面，以產生凸凹並形成極性基團。
  9. Zwitterion an ion with both a positive and a negative charge. amino acids and form zwitterions : the amino group has the form - nh3 + and the acid group is ionized as - coo -

    兩性離子：既帶有正電荷又帶有負電荷的離子。氨基酸就是這樣一種離子：氨基基團為- nh3 +而羧基端為- coo - 。
  10. Through the comparison between freeze - drying and heat - drying, the agglomeration and the desorption of the precursor on carbon support can be alleviated with freeze - drying method. the effects on the electrocatalysts by pretreatments of carbon support, dispersant and precursor are studied. the result shows that pretreatment of the carbon support by kmno _ 4 can add oxygen - containing functional groups on the surface of carbon, which can reduce the hydrophobicity of the carbon support, and then make it much easier for carbon to dissolve in water to form suspension ; isopropyl alcohol can make the carbon support in high dispersion in the precursor solution, which can make the precursor absorbed on the surface of the carbon

    採用高錳酸鉀氧化預處理的碳載體比表面積較大，表面含氧官能團數量較多，親水性較好，有利於前軀體在碳載體表面的吸附;選取異丙醇作為預凍液中的分散劑，有利於碳載體在前軀體溶液中的分散，容易實現前軀體離子在碳載體表面的穩定吸附和分散;使用酸性pt （ no _ 2 ） _ 2 （ nh _ 3 ） _ 2作為前軀體，可以使前軀體離子和碳載體表面的酸性含氧官能團發生離子交換反應，使得前軀體離子吸附量增大，分散更加均勻，以上三種因素的選取都可以得到催化活性更高的pt / c催化劑。
  11. In order to reduce the membrane ' s cost, we prepared the membrane by simultaneous radiation grafting of styrene onto teflon - polytetrafluorethylene films and subsequent sulfonated by the chlorosulfonic acid introducing the activity sulfonic acid grape into the grafting side chains of the polymer films

    在實驗中採用高能輻射技術，先將苯乙烯單體接枝到聚四氟乙烯聚合物基體上，后經氯磺酸磺化反應引入磺酸基團，合成了滿足燃料電池性能要求的質子交換膜。
  12. 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。
  13. It has been shown that domain ia is responsible for cell recognition, domain ii is to be involved in translocation of the toxin across membranes, and domain hi catalyzes the adp - ribosylation of elongation factor2, which arrests protein synthesis and results in cell death

    人組蛋白h3是堿性核蛋白，富含精氨酸，在生理條件下， h3的精氨酸帶正電荷，而dna的磷酸基團帶負電荷，所以組蛋白和dna分子主要依靠靜電引力相結合。
  14. Acidic iron ore pellets

    酸性鐵球團礦
  15. Kaolinite - organic intercalation compound possesses not only the unique adsorptivity, dispersivity. porosity, rheological behaviour and surface acidity of the clay mineral but also the multivariate functional groups and the reactivity of the organic compound. as a new type of mineral materials, it has extensive potential application in catalysts, functional supporter, adsorbents and advance ceramics

    高嶺石有機插層復合物既具有粘土礦物特有的吸附性、分散性、流變性、多孔性和表面酸性，又具有機化合物的多變功能團和反應活性，作為新型礦物材料，在催化劑、功能載體、吸附劑、先進陶瓷材料等方面具有廣闊的應用前景。
  16. The response mechanism of the film to organic vapors was discussed primarily. it is thought that the film reacted with molecule of carboxyl acid vapors through both the basicity hydrogen - bond of amino - group and the acid hydrogen - bond of carboxyl acid molecule

    認為摻胺碳膜通過胺基團的堿性氫鍵同梭酸類物質蒸氣分子的酸性氫鍵相互作用而使蒸氣分子在薄膜表現產生吸附引起轉換器產生相應響應。
  17. In addition to this, even though he is only 3 years old and gets very tired following the lions around their on acre park, he is already famous as a lion tamer because he appears in an ad for the circus, and is even being sought by a manufacturer to promote acid adapted specially for use in animal food

    除此之外，雖然他還只有3歲，跟著獅子繞了一圈方圓一英畝的場地之後總是累得夠嗆，他已經是一個很有名的馴獅員了，因為他為馬戲團做了一個廣告，現在甚至還有一個廠家找他幫助推銷酸性物質，一種特別適合作為動物飼料的產品。
  18. In addition to this, even though he is only 3 years old and gets very tired following the lions around their one acre park, he is already famous as a lion tamer beacuse he appears in an ad for the circus, and is even being sought by a manufacturer to promote acid adapted specially for use in animal food

    除此之外，雖然他還只有3歲，跟著獅子繞了圈方圓一英畝的場地之後總是累得夠嗆，他已經是一個很有名的馴獅員了，因為他為馬戲團做了一個廣告，現在甚至還有一個廠家找他幫助推銷酸性物質，一種特別適合做動物飼料的產品。
  19. The research discovered that the nitric acid oxidation may remarkably increase, the activated charcoal surface acidic groups and bases the content, enhances the activated charcoal the superficial water affinity, falls to the phpzc value, and creates the activated charcoal structure to cave in the reduction which accumulates with the relative surface. thus in the activated charcoal adsorption drinking water has the slight pollutant performance to have the serious influence

    研究發現:硝酸氧化可顯著增加活性炭表面酸性基團的含量，提高活性炭的表面親水性，降低phpzc （水溶液中固體表面凈電荷為零時的ph值）值，並造成活性炭結構塌陷和比表面積的減少。使活性炭吸附飲用水中有機物的能力大大降低。
  20. A mechanism that interprets this phenomenon was proposed as follows : the adsorbents can interact with phospholipid of ldl through calcium ion cross - linking of the phospholipid phosphate groups of ldl and the carboxyl groups of sde ligands. on the other hand, the electrostatic interaction between the positive charge of the phospholipid choline nitrogen of ldl and the negative charge of carboxyl groups of sde ligands is enhanced by the calcium cross - linking of the phosphate groups of neighboring phospholipids in ldl

    其可能的原因是：在吸附體系中如存在大量的cay ，一方面ca可以作為橋梁連接ldl所含磷脂極性頭部的磷酸基團和吸附微珠配體上的孩基；另一方面又可交聯相鄰磷脂間的磷酸基團，從而促進ldl所含磷脂極性頭部的膽堿n 」與配體竣基的相互作用。
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