mass exchange 中文意思是什麼

mass exchange 解釋
質量交流
  • mass : n 彌撒；彌撒的儀式[禱告、音樂]；彌撒曲。 a high [solemn] Mass （有燒香、奏樂等的）大彌撒。 a low ...
  • exchange : vt 1 （以某物與另一物）交換，調換 （for） 2 互換，交流，交易。3 兌換。 vi 1 兌換 （for） 2 交換；...
  1. Adopting the assummation that the quark interaction is the sum of the usual one - gluon direct exchange and the mixture of linear scalar and vector potentials, we structure the relativistic corrections of order v2 / c2to the cornell potential, including the annihilation potential for the quark and antiquark of the same favors which plays the same role with the one - gluon direct exchange at short distances. the effects of the relativistic corrections on the hyperfine splittings of quarkonium states are discussed, and a good fit to the available experimental data is obtained on heavy quarkonium mass spectra

    采納庫侖勢源於單膠子直接交換，而線性禁閉源於標量和矢量的混合，同時考慮在短程區域與單膠子直接交換起同樣作用的同味正反夸克的湮滅，構造了靜態夸克-反夸克勢到v ~ 2 c ~ 2級次的完全相對論修正，並擬合計算了重介子偶素的能譜，討論了相對論修正對重介子偶素能級分裂的作用。
  2. Because it had demonstrated our country universities nurturing the human achievement in the high level, impels between the universities and society ' s exchange effectively, now has become a dominantly activity in the university student class - odd science and technology culture activity ; because of in national university student extracurricular academic science and technology domain guideness, demonstrativeness and mass character, it is crowned a fine reputation of the olympics in chinese university student academic scientific and technical circles

    由於其在較高層次上展示了我國高校的育人成果，有效推動高校與社會之間的交流，如今已成為高校學生課余科技文化活動中的一項主導性活動；更因在全國大學生課外學術科技領域的導向性、示範性和群眾性，而被冠以中國大學生學術科技界"奧林匹克"的美名。
  3. A mathematical model for the anode of a direct methanol fuel cell ( dmfc ) considering the mass transport in the whole anode compartment and the proton exchange membrane ( pem ), together with the kinetic and ohmic resistance effects through the catalyst layer is developed. the influences of key parameters on methanol crossover and anode performance are investigated

    對于dmfc的陽極，本文描述了甲醇和水在陽極及質子交換膜（ pem ）中的傳遞過程、反應動力學和歐姆阻抗效應，建立陽極和pem的數學模型，並探討對甲醇擴散和陽極性能影響的主要因素。
  4. A neurotoxic peptide ( named huwentoxin - v ) was purified from the venom of the spider by a combination of ion exchange chromatography and reverse phase hplc. hwtx - v has 35 amino acid residues, with the molecular mass 4111. 4da. the amino acid sequence has been determined as nh2 - ecrwylggcsqdgdcckhlqchsn - yewcvwdgtfs - cooh, which consists of 6 cys, formed three pairs of disulfide bridges

    本文報道從虎紋捕鳥蛛（ selenocoimahuwena ）粗毒中，結合陽離子交換和反相高效液相色譜分離純化出一種昆蟲毒素，命名為虎紋捕鳥蛛毒素- （ huwentoxin - ， hwtx - ） ；其天然突變體（ themutantofhuwentoxin ， mhwtx - ）也同時純化出來。
  5. The hwtx - i gene was chemically synthesized according to its known cdna sequence, the gene was inserted into vector ppic9k which contained aoxj promotor and the sequence of a secreting signal peptide - a - factor, the cloning ppic9k / hwtx - i was constructed and confirmed by two - step pcr and dna sequence analysis, then it was transformed into host strain gs115, a his + muts cell line was screened and multicopy transformants were screened by various g418 concentrations, the multicopy transformant was named gh1. gh1 was cultivated in flasks. after 6 days of induction by 0. 5 % methanol, the supernatant was checked by 16. 5 % tricine - sds page, which showed there was a band in the position of 3. 5 - 6. 1kd, then it was isolated and desalted by ultrofiltration followed by ion exchange of cm column, after reverse phase hplc of ci8 and vacuum drying, the purified rhwtx - 1 was obtained which was proved to be correct recombinant hwtx - i by tricine sds - page, maldi - tof mass spectrometry, amino acid composition analysis, the n - terminal amino acid sequence and its biological activity, the final field of the purified rhwtx - i was about 80mg / l, accounting for 23. 6 % of it total secretory proteins

    將帶有hwtx -基因的ppic9k經blgii線性化后，轉化酵母宿主菌gs115原生質體后經篩選陽性克隆並經表型鑒定為his ~ + mut ~ s酵母菌，進一步用遺傳毒素g418篩選多拷貝的轉化菌株，命名為gh1 ；將gh1甲醇酵母菌用0 . 5的甲醇誘導表達，發酵上清經90飽和度的（ nh _ 4 ） _ 2so _ 4沉澱， yw - 3 （ mwc03000 ）的超濾膜超濾，再經cm陽離子交換， c _ （ 18 ）反相hplc純化得到分子量為4kd左右的組分，其中4289 . 05的組分經質譜鑒定，氨基酸組成分析和序列測定為正確的表達產物，生物學活性表明其活性為天然毒素活性70 % ，表達量為80mg / l 。
  6. Numerical simulation of mass transfer in the cathode of a proton exchange membrane fuel cell with interdigitated gas distributors

    交指型電極的質子交換膜燃料電池陰極內傳質過程的數值模擬
  7. The thermocline reflects the ocean temperature field ' s important physics characteristics. it has important influence on underwater communication, submarine activity as well as fishery farming and fishing. it has close relations with branch subjects such as ocean current, water mass, inside wave, sea and air exchange

    溫度躍層是反映海洋溫度場的重要物理特性指標，對水下通訊、潛艇活動及漁業養殖、捕撈等有重要影響，並與海洋環流、水團、內波、海氣交換等分支學科關系密切。
  8. A review on the mechanism of mass transfer in an ion exchange membrane

    離子膜傳質機理的研究評述
  9. The range of cross - strait exchange activities has been extended gradually from academics to art, culture, science, technology, sports, and the mass media

    總計兩岸文教交流之范圍，目前已由學術逐漸擴及藝文科技體育與大眾傳播交流。
  10. The paper introduces the fundamentals of the temperature distribution in the borehole drilled in the frozen formation, and discusses the ascertainment of these parameters, including the mass quantity of circulation medium, the coefficient of thermal conductivity of drilling rods, the coefficient of the intensity of heat exchange and the coefficient of unstable heat exchange between the rock and the circulation medium, and the rising of the temperature of the circulation medium in the bottom of the bore

    摘要介紹了凍土鉆孔內溫度分佈研究的理論基礎，其中主要討論了沖洗介質的質量流量、鉆桿桿壁的導熱系數、巖石同沖洗介質的熱交換強度系數與不穩定熱交換系數，以及孔底沖洗介質溫度升高值的確定。
  11. We should make full use of the foreign pr groups and mass media for they are clear about the mentality of the people there and know how to meet it. in terms of the way of conducting public diplomacy, we should give up the one - way spread of information and adopt the two - way exchange and multi - layer spread

    為了解決這些問題，我們需要設立負責統領和協調公共外交工作的專門機構，制定公共外交戰略，加大對國際媒體的投入，增強文化部門和非政府組織在國際交流中的作用；研究公共外交受眾的心理，學會利用國外游說集團和國外主流媒體；打破公共外交的單向傳播模式，學會雙向傳播和多層傳播。
  12. The frequencies of translational actuation influence the stability of the tethered mass system. when the frequencies approach the natural frequency of the system, the period of energy exchange decreases and the amplitude of the pendulum increase. when the frequencies equal to the natural frequency of the system, resonance appears

    變幅激勵的頻率對系統穩定性有較大影響，當變幅激勵頻率接近系統固有頻率時，系統面內外能量交換周期減小，擺幅增大;當變幅激勵頻率等於系統固有頻率時，系統面內外均出現共振現象。
  13. These interactions may also serve as important ways for lithosphere recycling and mass exchange between the shallow and deep parts of the earth, which could significantly affect deep mantle convection and surface tectonic processes

    這種相互作用被認為是穩定克拉通巖石圈遭受改造甚至破壞的深部機制，同時還是地球深、淺部物質交換的重要方式，因而顯著影響著地球深部的對流和地表的構造過程。
  14. Authorized by the ministry of railways ( mor ) and sponsored by both the scientific and technological information research institute of mor and the engineering consultation co., ltd. ( in beijing ) under china academy of railway sciences, the journal, operated in a new mode of media, shall focus on urban rail transit business, introduce the all - around aspects of the construction and operation experiences on such mass transit as metro systems and light rails at home and abroad, and report timely the related technologies and equipment as well as the hi - tech achievements in this field, in order to promote the academic seminar, technical exchange and international cooperation

    由鐵道部主管、鐵道部科學技術信息研究所和鐵科院（北京）工程咨詢有限公司主辦的《現代城市軌道交通》將以新傳媒模式運作，密切關注城市軌道交通事業的焦點、熱點；全方位介紹國內外地鐵、輕軌等快捷交通的建設和運營經驗；及時報道相關技術及其裝備和高新技術成果；不斷擴大國際合作，多元化促進學術研討與技術交流。
  15. The mathematical model of the heat and mass exchange in the contact process of air and water in limited space

    有限空間空氣與水熱濕交換過程的數學模型
  16. In the model, many processes or phenomena such as crack friction and growth, heat conduction, phase transformation of oxidant particulates, heat generation by viscous liquid layer, chemical reactions of gases in cracks, heat and mass exchange between phases of gas and solid, are described

    模型描述了裂紋滑移擴展、熱傳導、含能顆粒相變、液化層粘性加熱、裂紋內氣相反應、氣相固相質量能量交換及與裂紋擴展耦合等過程。
  17. New spring festival mass greeting meeting 2007 was held on jan. 30th at the sunshine hall of yingjie exchange center

    北大新春團拜會於2007年1月30日在英傑交流中心陽光大廳舉行。
  18. The application and analysis of mass - heat exchange condensing hot air furnace in tall space of cole and dry regions

    冷凝式熱風爐在高寒乾燥地區的應用分析
  19. Afterwards, the interaction of cultures appears many new laws and problems, which give rise to our attention and reflection. the thesis interprets the meanings and era sense of china ' s advanced culture, then analyses the objective laws from the global point of view and practical influence of interaction of cultures, and examines carefully the exchange, mixture, opposition and conflict between cultures in the tide of globalization, and the new problems which they give rise to politics thought, national identification, humane awareness and mass mentality in our country

    論文首先對先進文化的內涵和時代意義進行了剖析，以全球化的視野分析了文化互動的客觀規律、表現形式和現實影響，認真審視了全球化浪潮中文化的交流、融合、對立和沖突，及其對我國政治觀念、民族認同、人文意識和大眾心理產生的新的問題，從而從這些實際問題出發，在全球化浪潮的多元文化互動中做到有的放矢，揚長補短，準確把握中國先進文化的前進方向。
  20. In light of the success of the market - making system in enhancing the secondary market liquidity of the exchange fund paper, the arrangement was extended to the notes of the mass transit railway corporation ( mtrc ), airport authority ( aa ), kowloon - canton railway corporation ( kcrc ) and the hong kong mortgage corporation limited ( hkmc )

    鑒於市場莊家制確實增加了外匯基金票據及債券在第二市場的流動性，地下鐵路公司、機場管理局、九廣鐵路公司及香港按揭證券有限公司所發行的債券也採用這個制度。
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