環中的碳 的英文怎麼說

中文拼音 [huánzhōngdetàn]
環中的碳 英文
nuclear carbon
  • 環 : Ⅰ名詞1 （環子） ring; hoop 2 （環節） link 3 （姓氏） a surname Ⅱ動詞（圍繞） surround; encircle;...
  • 的 : 4次方是 The fourth power of 2 is direction
  • 碳 : 名詞[化學] （非金屬元素） carbon （c）
  1. Manufacturer of organic bromine compounds in india. products include alkyl, acetyl, and allyl bromides, bromo - aromatics, and ethylene dibromide, for use as intermediates in fine chemical and pharmaceutical manufacture

    -提供紫外線吸收劑benzophenone系列和醫藥中間體：琥珀酸單乙脂酰氯羅紅側鏈二環乙基碳二亞胺溴乙醛縮二乙醇等的單位。
  2. Chemical and stable carbon isotopic compositions of the ground waters of guiyang city, china : implications for biogeochemical cycle of carbon and contamination

    碳同位素和水化學在示蹤貴陽地下水碳的生物地球化學循環及污染中的應用
  3. The protected amino acids were z - ser ( bzl ), boc - asp ( obzl ) and glu ( obzl ) 2. the quality of the synthesized tripeptide : ser - asp - glu ( sde ) by thin layer chromatography, amino acid analysis and liquid chromatography - mass spectrometry is pure. the paam beads with different length arms were obtained by coupling the various length linear spacer, such as ethylene diamine, glutaraldehyde, 1, 6 - diaminohexane and amino caproic acid to paam beads

    按照從梭基端到氨基端的合成路線，用風n 』二環己基碳二亞胺（ dcc ） l羥基苯驕三氮哩（ hobt ）液相合成法逐步接肽，制備得到對應的帶保護基的中間體，用催化氫化還原脫去所有的保護基。
  4. Carbasugars, carbocyclic analogues of true sugars, are compounds in which the ring - oxygen of furanoid or pyranoid sugars is replaced by methylene group

    摘要碳環糖是一類呋喃或吡喃糖環中的氧原子被亞甲基取代后形成的糖類似物。
  5. The most important carboxylase in plants is ribulose bishosphate carboxylase ( rubisco ), which catalyzes the carboxyation of ribulose bisphosphate, the ‘ carbon - fixing ’ first step in the calvin cycle

    在植物中最重要的羧化酶是核酮糖二磷酸羧化酶，它可以羧化核酮糖二磷酸，在卡爾文循環中是二氧化碳固定的第一步。
  6. Caco3 not only affects soil physical and chemical characteristics but also causes co2 change in the air, because caco3 is main components among the total pool of inorganic carbon of soil. this paper systematically summarized and analyzed general development characteristics of soil profile caco3 in loess hill gully area including source, content, forming - condition, distribution and illuviation - depth of caco3, which will have the most important significance for the further studies on global soil and climate change

    碳酸鈣在土壤剖面中淀積的深度和類型是黃土高原土壤發育的重要標志，鈣積層是黃土高原土壤發育環境的歷史信息庫，同時土壤碳酸鈣作為土壤無機碳庫重要組成，它通過溶蝕后再結晶與大氣co _ 2之間進行物質交流來影響全球氣候變化。
  7. A novel ring - enlargement oxidation of polyphenyl substituted cyclopentadienes in air ( or molecular oxygen ) promoted by perchloric acid was described, in which an oxygen atom was inserted into the cyclopentadiene - ring, forming a six - membered pyrylium salts

    摘要報導了空氣（或氧氣）存在的條件下，由高氯酸引發多苯基取代環戊二烯發生新穎的碳碳鍵斷裂擴環反應，在此反應中，氧原子插人到環戊二烯環中形成相應的六元環吡喃鹽類化合物。
  8. The main results are following : ( 1 ) the variation of clay / silt ratio can indicate the secondary clay action of dust depositions ; the variations of magnetic susceptibility and total fe content are inferred to be records of the changeable intensity of bio - pedogenesis ; the variations of sr content and rb / sr ratio can indicate bio - pedogenesis, dissolving and leaching action ; the content of total organic carbon ( toc ) can reflect variation of climate and vegetation during soil formation, it indicates the intensity of weathering and bio - pedogenesis ; the content variation of caco3 can show the intensity of dissolving - leaching action and secondary deposit, which was noted as pseudomycilia in pores and fissures in the sediment, so it can indicate the intensity bio - pedogenesis quite well. these proxy indexes also reflect obvious regional difference of pedogenic environment and the intensity bio - pedogenesis ; namely, secondary clay action, dissolving - leaching action and bio - pedogenesis are all much stronger in south than that in north

    實驗結果表明：粘粒粉沙比值能很好地指示粉塵堆積物的次生粘化作用；磁化率和全鐵很好地指示生物風化成壤作用； sr和rb sr比值能很好的指示生物風化成壤作用和淋溶作用；總有機碳（ toc ）含量的高低，在一定程度上反應了土壤發育過程中氣候和植被狀況的變化，指示著成壤過程中腐殖質化的程度； caco3含量的變化，可以反映了黃土古土壤形成時的風化成壤作用的強弱程度，指示成壤過程中的淋溶作用和次生碳酸鹽化作用；並且各指標所指示的成壤環境和成壤強度存在明顯的區域差異，即渭河流域土壤的生物風化成壤作用、次生粘化作用和淋溶作用均表現出南部強于北部。
  9. New developments of polycarboxylic acid derivative catalysts, ion exchange resin catalysts, macrocyclic chelating compound catalysts, quaternary phosphonium salt catalysts, heterogeneous hydrotalcite - type catalysts and other catalysts which to be used in ethylene oxide catalytic hydration, and the catalysts of synthesis method of ethylene glycol via preparation and reaction of ethylene carbonate are expounded

    闡述了用於環氧乙烷催化水合反應中的多羧酸衍生物催化體系、離子交換樹脂催化體系、大環螯合物催化體系、季?鹽催化體系、多相水滑石型催化體系及其他催化體系近年來的研究進展；同時闡述了用於碳酸亞乙酯法合成乙二醇反應中的催化體系的新進展。
  10. Currently sequestrating co2 to agricultural soil is a. front field in soil carbon cycle studies, among which whether agricultural soil redistribution leads to carbon sequestration has developed scientific, political and social interests

    當前，農田土壤固碳過程是土壤碳循環研究中的一個前沿領域，其中農田土壤再分佈過程能否導致土壤固碳已引起科學上、政治上以及社會上廣泛的興趣。
  11. Tree ring is a kind of natural archives, on which the isotopic analysis is important to study global climate and environmental change. the authors mainly provide a comprehensive introduction to the fractionation models of carbon, hydrogen and oxygen isotope in plants, their research techniques and the extract methods from cellulose. that results show isotopic tracer can record the message of climatic variation and has become a powerful tool for paleoclimate reconstruction and for the modern environment changing research. especially studying on pages, the cellulose isotopic analyses of imbedded old tree ring have become the mainly quantitative means of environmental evolvement. in addition, china is a typical monsoon country, research in tree ring stable isotope seasonal variation can give us a lot of important information on that. up to now, the research techniques and works on tree ring in our country are still in its earlier stage, and remain many limitations. it needs further accumulate basic research materials, intensify regional contrast and intercross studies on relative subjects

    尤其是在過去全球變化pages研究中，埋藏古木纖維素中的碳氫氧同位素分析已成為環境演化研究的主要量化手段。另外，對于中國這樣典型的季風氣候國家，開展樹輪穩定同位素隨季節性變化的研究具有重要的意義。我國在樹輪研究方面起步較晚，研究方法和研究內容上也比較簡單，還存在不小差距，既要進一步積累基礎資料，又要做區域對比，加強與相關學科的交叉研究。
  12. This thesis emphasizes to proceed the study on the mechanism of formation of the reservoirs of lower palaeozoic burial hills in the regions of zhuangxi and chengdao from the angle of geochemistry. the research of petrology reveal rock types of the regions mainly include carbonate rock, claystone, siltstone, breccia and a few of evaporite rock

    巖石學研究表明，樁西、埕島地區下古生界古潛山儲層的巖石類型有碳酸鹽巖、粘土巖、碎屑巖、以及少量蒸發巖，其中碳酸鹽巖是該區下古生界古潛山儲層最主要的巖石類型，為一種穩定地臺型海相沉積環境的產物。
  13. Soil carbon and its significance in carbon cycling of earth surface system

    土壤碳及其在地球表層系統碳循環中的意義
  14. 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
  15. The electrode was found to decrease the solubility of dithizone in alkalescence solution and effectively minish the lose of deoxidize state of metal. third, a potentiometric sensor was prepared by adding copper diethyldithiocarbamate directly into the carbon paste mixture, and the electrode was found has nerst response to copper ion in solution. and in our research two pharmaceutical selective electrodes were fabricated by coating polyvinyl chloride ( pvc ) which contained electroactive material on carbon rod electrode

    第二，利用- cd與環氧氯丙烷形成的交聯聚合物（ - cdp ） （不溶性）包合了雙硫腙，然後將- cdp與雙硫腙包合物樹脂作為修飾劑制備了碳糊修飾電極，利用陽極溶出伏安法（ asv ）測定了pd ~ （ 2 + ） ，實驗發現通過包合降低了雙硫腙在堿性溶液中的溶解度並且減少了金屬還原態的流失，取得了較好的效果。
  16. In order to play the whole advantage of supply chain, realize the information sharing, supplement with each other ' s advantages, reach a result of two - wins and set up a steady and healthy cooperative partner and strategic alliance relation, this paper proposes to choice the supplier by combining the actual situation of kunlun machine factory according to the supplier ' s choice standard and method, and then sets up a supplier evaluated indexes system of kunlun machine factory. with the example of the purchase of carbon - forms steel in hai - 2000 productions, the fuzzy - evaluation method is applied in evaluate three supplier of kunlun machine factory, and on the basis of it the encourage measures of different kinds of suppliers is studied. the paper also analyses the influence of e - business to enterprises material purchased and probes into the material purchase strategies under the environment of e - business ; finally, a supply chain integrated performance evaluate index system is designed according to the analyses of supply chain management theory, and two methods of self - evaluated and pole - evaluated are adopted in evaluate the supply chain purchase integrated performance of kunlun machine factory

    論文在對采購管理和供應鏈管理理論綜述的基礎上，根據昆侖機械廠采購管理現狀和軍品采購的特點，分析了昆侖機械廠物資采購中存在的問題，研究了昆侖機械廠物資分類采購的策略；為了發揮供應鏈的整體優勢，實現信息共享，優勢互補，達到雙贏效果，建立穩定健康的戰略合作夥伴，按照供應商的選擇標準和方法，結合昆侖機械廠實際對供應商進行選擇，並建立了昆侖機械廠供應商綜合評價的指標體系；以昆侖機械廠的海2000產品中的碳結鋼物資采購為例，運用模糊綜合評價方法對該廠的三家供應商進行了綜合評價，在此基礎上，研究了不同類型的物資供應商的激勵措施；論文分析了電子商務對企業物資采購的影響，探討了昆侖機械廠電子商務環境下的物資采購策略；根據供應鏈管理理論構建了昆侖機械廠物資采購供應鏈，設計了昆侖機械廠供應鏈采購整體績效評價的指標，採用自我評價和標桿評價方法對昆侖機械廠供應鏈采購整體績效進行了評價。
  17. In one side, the study may make the simulating model of climatology and land - biosphere more perfect, in the other side, the study will help to discover the real action of vegetation in the global carbon circle, which gives the more scientific method to estimate accurately biomass and net primary production ( npp ) of ecosystem and how much carbon in atmosphere absorbed by vegetation, to predict the possible impact of global climate change on terrestrial ecosystems, and to make scientific strategies for the global change

    一方面可以為進一步建立更完善的模擬氣候與陸地生物圈之間關系的數值模式奠定基礎，另一方面可為探索植被在全球碳循環中的具體作用，正確地評估和預測全球氣候變化對生態環境的可能影響，制定相應的政策提供科學依據。本文以寒溫帶落葉針葉林區為重點來進行試驗模擬，研究植被對氣候強迫響應的有效途徑。
  18. The damage caused by hydro - chemical and hydraulic erosion in groundwater environment for carbonate rock is defined as rock erosion damage by author. the hydro - chemical damage is caused by the chemical reaction between groundwater and carbonate rock, while hydraulic damage by hydraulic fracture action

    本文定義賦存於地下水環境中的碳酸巖或其它易腐蝕巖體，在地下水化學腐蝕與水力（劈裂）作用下內部出現更多缺陷，從而使其力學和水力學性能發生劣化或改變的作用為腐蝕損傷作用。
  19. The release of the carbon in these compounds forrecycling depends almost entirely on the action of both aerobic andanaerobic bacteria and certain types of fungi

    要把這些化合物中的碳釋出使之再進入循環，則幾乎完全仰賴好氧性細菌和厭氧性細菌以及某些真菌的活動。
  20. In the study of global carbon cycle, the continental margin, being considered one of the potential sinks of the missing term of carbon, has become the focus of researches in the past few decades

    針對目前全球碳循環中的循環途徑不閉合的問題，大陸邊緣海因被認為是碳循環中丟失項（ missingterm ）的可能去處，而成為研究的焦點。
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