共變元 的英文怎麼說

中文拼音 [gòngbiànyuán]
共變元 英文
covariant element
  • : 共動詞[書面語]1. (圍繞) surround2. (兩手合圍) span with the hand
  1. Based on the analyses on mechanical properties, microstructure and fracture of - the microalloyed steels socrv with various heat treatment technique, it can be affirmed that various fractures arttribute to various mechanism, we can draw conclusion that the strength and toughness of microalloyed steels 50crv will be increase simultaneously by optimal heat treatment technique. to illustrate the mechanism of the strength and toughness of microalloyed steels socrv, we designed the comparative experiment and observed the microstructure of the sample which occurred at different quench and tempering temperature and different tempering time. the last experiment results were determined by the four factors : fined microalloyed elements grains, the decompound of martensite, martensite transformation of remnant austenite and the second phase precipitation

    為解釋微合金化50crv鋼強韌化機理,本文通過對不同淬火溫度,回火溫度,回火時間下的力學性能指標的對比及顯微分析,認為微合金素的細化晶粒,馬氏體的回火分解,殘余奧氏體的轉,第二相的沉澱析出同決定了微合金鋼的強韌化情況,特別是由於微合金素的存在,其細化晶粒及其碳氮化物的沉澱析出,導致鋼的良好的強韌性,並且如果工藝滿足第二相的沉澱析出強化大於回火馬氏體分解引起的軟化效應,會在硬度曲線中產生明顯的二次硬化現象。
  2. This article choosed out organic phase change materials, and, the solid - liquid - equilibrium of eleven binary system including fatty alcohol / fatty acid, n - octadecane / fatty acid, n - octadecane / fatty alcohol system were determined by cooling curve, and, t - x phase diagrams of these systems were drawn. the result shows that all these systems are simple eutectic, at the same time, the entropy of phase change of every system in the eutectic point is determined by using differential scanning calorimetry ( dsc ). and n - octadecane / fatty acid systems were calculated theoretically

    本文初選出部分有機相貯能材料,採用步冷曲線法測定了12醇-羧酸系列、 18烷-羧酸系列、 18烷- 12醇體系11組體系的二固液相平衡關系,繪制了這11組體系的t - x相圖,測定結果表明,這幾組體系均為簡單低熔體系;同時利用差熱掃描量熱法( dsc )對上面各組體系低熔點處的相焓進行了測定;並對18烷-羧酸系列進行了熱力學理論預測。
  3. According to the nb - si phase diagram, the temperature of 1550 ?, which is lower than the eutectoid transformation temperature of nbssi ( 1783 ? ), is chosen for heat - treatment. according to the present conditions of the furfaces, heat - treatment by stages is first proposed for the nb - si system intermetallic composites to keep the furface in good conditions. the results indicate that the equilibrium nb + nbssia dual - phase microstructure of the nb - si system intermetallics forms gradually via such eutectoid reaction as nbasi ? nb + nbssis with the heat - treatment time

    根據nb - si二相圖,選擇略低於nb _ 3si析轉溫度t _ f = 1783的1550對鑄態nb - si系金屬間化合物進行不同時間( 25h - 100h )的熱處理,並根據目前國內和我院熱處理爐的現狀,首次提出採用分段熱處理的方法來解決nb - si合金熱處理溫度高、連續熱處理時間過長而影響熱處理爐壽命的困難。
  4. The s - l - e experiment data for the eight binary condensed systems of fatty alcohol / fatty acid were treated by using the improved equation, and the equation was examined with experimental data. at the same time, we used ideal model to predict the tenary s - l - e of n - octadecane / lauric acid / stearic acid system, and we got an accurate result of the simple eutectic temperature. the relative error is 0. 51 % comparing with the experimental result, so we will offer a method of prediction for quickly obtaining multicomponent system phase change materials this article calculated the pcms quantities and energy saving effect in theory, designed the experimental apparatus to measure the energy saving effect, and analyzed the temperature equalization action of the pcms by comparing experiment

    利用這種方法,建立了適合醇-羧酸等系列二體系的單參數margules方程,本文對醇-羧酸系列等8個二凝聚體系的單參數margules方程的參數進行回歸,並利用整個實驗數據對模型進行了檢驗,另外,本文利用理想狀態模型對一個三體系18烷-月桂酸-硬酯酸相圖進行預測,通過與實驗數據進行比較,預測的低熔溫度與實驗測定溫度較為吻合,其相對誤差為0 . 51 ,這將為快速獲取多體系的相材料提供預測方法。
  5. Water feeding framework takes electromagnetism water valve as administration component and is added relief valve for stabilizing hydraulic pressure ; the system has large, middle and small water valve that changes unlock combination of electromagnetically operated valve, which can get seven different water flux ; if it is necessary, it should adopt microseism water feeding that can make water feeding get stepless timing

    3加水機構加水機構採用電磁水閥作為執行件,加入調壓閥穩定水壓,系統設大中小三路加水閥,化電磁閥的開啟組合,可以得出7種不同的加水流量,必要時採用脈動加水法,可使加水達到無級調速。
  6. However, this diversification of subjects does not rejigger the fact that these non - government public m - non - government public management organizations execute public power. all public power tend to dissimilation and these non - government public management organizations do have their own intrinsic shortcomings

    但是,公管理主體多化並不能改非政府公管理組織行使的仍是公權力的事實,但公權力都存在異化的傾向,非政府公管理組織也存在自身的缺陷。
  7. It showed that activated inhibition by weak noise could be gabaergic inhibition. from above the findings, we could give a hypothesis that the input of random oscillation induced by noise in the cochlea to central auditory system could be integrated in the central auditory nucleus and the response of sound - sensitive neuron to sound stimuli could be adjusted to an optimum state for signal intensity coding

    根據這些化可以推測,這種背景噪聲的生物學作用可能是通過弱噪聲所引起的耳蝸隨機振的輸入,在上行過程中經各級聽覺核團的整合,將中樞聲敏感神經調定在一種準備狀態,並定型放電率函數和調制神經對聲馨碩士學位論文master 』 st砰iesis強的編碼。
  8. However, all the new taxes, i. e. the boundary facilities improvement tax and the football betting tax, would contribute less than 10 billion dollars in total. with the government expenditures remaining at the same level, even if the economy revived in the future and there would again be land premiums, there would still be a recurring budget deficit of 30 - 40 billion dollars. the government therefore had to greatly reduce public expenditures to meet the deficit

    李家祥更估計,今年財赤有可能去到800億,但其他新的稅收(邊境建設稅及賭波) ,全部加起來卻不夠100億,即使將來的經濟復甦、賣地收入恢復,若果政府開支不,日後的經常性財赤也有300至400億,政府一定要大幅削減公開支,才能解決財赤問題。
  9. ( 3 ) by choosing core faultage of axial site in luohu fracture zone i. e. geological cross section in huangbeiling faultage f8 as geological model and utilizing finite element numerical method, change tendency of huangbeiling faultage f8 under self - weight stress and building loads is stimulated. and long - term development trend of fracture zone is also predicted, which has an important guiding meaning for works of geological disaster prevention in district of luohu jiancheng

    ( 3 )選取羅湖斷裂帶軸部的核心斷層?黃貝嶺f8斷層地質剖面作為地質模型,利用有限數值方法模擬了黃貝嶺f8斷層在自重應力和建築物荷載同作用下的化趨勢,預計出斷層帶的長期發展趨勢,這對羅湖建成區的地質災害防止工作有重要的指導意義。
  10. Simultaneously cross - linked and quaternized 4 - vp - co - nbuma was also investigated as humidity sensing materials and showed good linearity, high sensitivity, good high stability at high humidity and high temperature, and durability to organic solvent, etc. sensors based on 4vp - co - buma ( vp / buma = l / l ) with crosslinking and quaternization reaction of 17 hours exhibited a change of three orders of magnitude ( 104 ~ 107 ) in impedance over the range of 95 % rh ~ 30 % rh, showing high sensitivity, and little hysteresis was observed

    件具有響應線性度好,靈敏度高,濕滯小、高溫高濕穩定性好、耐無水乙醇有機溶劑性能好等優點。其中,交聯季胺化17小時配料比為1 1聚物濕敏件,在33 rh 95 rh濕度范圍內,阻抗化達3個數量級( 10 ~ 7 - 10 ~ 4 ) ,響應靈敏度高,幾乎無濕滯。
  11. The result shows that with the addition of rare earth elements, ultrasonic irradiation and magnetic field, the chemical component, surface configuration, microstructure and properties of electroless co - ni - b and co - fe - b alloy changes remarkably. such kind of change can be described as the followings. firstly the depositing speed of electroless alloy bath is raised while the polarizability and cathodic overpotential are reduced ; secondly the surface quality of the alloy coating and adhesion of the coating and matrix are improved ; thirdly in the coatings the content of the elements in the transient group increases, but the content of cobalt decreased ; fourthly the amorphous structure is transformed to microcrystal structure and polycrystal structure ; fifthly the microhardness and wear resistance of the coating are enhanced ; sixthly coercitive force is reduced, and magnetoconductivity of the coating is increased ; lastly the magnetic intensity of the coating increases with the addition of energy and light rare earth elements such as ce, la and decreases with the addition of heavy rare earth elements such as y. on the other side, when the alloy coatings passes through the heat treatment under the temperature of 250 or 500, their properties will change

    結果顯示化學沉積co - ni - b 、 co - fe - b工藝在稀土素( ce 、 la 、 y 、 dy ) 、能量(超聲波、磁場)介入后,沉積過程、合金成分、鍍層形貌結構和性能都有顯著化,表現在:鍍液的陰極極化過電位和極化度降低,沉積速度提高;鍍層的結合力、表面質量改善;鍍層中過渡族素的含量增加,輕素硼的含量降低,同時證實了稀土素與過渡族沉積的可能性;鍍層的顯微結構由非晶態向微晶和多晶態轉;鍍層的顯微硬度與耐磨性提高,力學性能優化;鍍層的矯頑力降低;磁導率提高;鍍層的磁化強度在能量(超聲波、磁場)和輕稀土素ce 、 la介入后提高,重稀土素y介入后降低。
  12. Based on plenty of domestic and overseas documentation and accurate data about social security, this thesis utilizes a number of research methods, such as analysis, induction, assumption, comparison and historical materialism, etc. in expounding the significance and methods of building up the legal system of china ’ s rural social security in an all - round way from the following four aspects of expatiating on the fundamental issues of social security and the evolution track of china ’ s rural social security, exploring the social and historical rootstock resulting in the long - term predicament encountered by china ’ s rural social security, analyzing the so - called social security function of rural land, demonstrating the significance and routes of building the legal system of china ’ s minimum living security and social endowment insurance for rural residents, so as to reveal that the social and historical rootstock resulting in the long - term predicament encountered by china ’ s rural social security lies in the long - term social structure system of compartmentation between urban and rural areas, which is typically characterized by attaching more importance to industry than to agriculture, drawing profits from agriculture to accelerate industry ’ s development, by studying historically the predicament encountered by china ’ s rural social security, to disclose the serious reality that currently most of farmers lack social security and indicate the great significance of building up the legal system of china ’ s rural social security by refuting the argument that rural land can provide social security function, to clarify the necessity and feasibility of constructing the legal

    本文運用了分析、歸納、假設、比較和歷史唯物主義等研究方法,藉助國內外有關社會保障方面的大量研究資料和翔實數據,從闡述社會保障的基本問題與我國農村社會保障制度的歷史演軌跡、探詢長期造成我國農村社會保障制度困境的社會歷史根源、分析農村土地的社會保障功能以及論證構建農村居民最低生活保障法律制度與農村社會養老保險法律制度的意義和路徑四個方面全面論述了構建中國農村社會保障法律體系的意義和方法,目的是通過對我國農村社會保障困境的歷史性考察揭示造成我國農村社會保障長期積弱局面的社會歷史根源就在於我國長期實行的重工輕農、以農養工的城鄉分割二社會結構體制,通過對農地社會保障功能觀點的批駁揭示當前廣大農民缺乏社會保障的嚴峻現實,指出構建農村社會保障法律制度的重大意義,通過對構建中國農村居民最低生活保障法律制度和農村社會養老保險法律制度的積極探索論證構建我國農村社會保障法律體系的必要性和可行性。總之,同是作為中華人民和國公民,無論是農村居民還是城市居民都應該在社會保障方面享有同等的權利。國家不能人為地重工輕農、厚此薄彼。
  13. Firstly, we generalize and analyze the advantages and present research of elliptic curve cryptography ; secondly, we study the basic theory of the ecc ; thirdly, we illustrate the safety of the ecc and discuss the elliptic curve key agreement scheme, elliptic curve encryption scheme and elliptic curve digital signature algorithm ; fourthly, we study fast algorithms of the multiplication and inversion multiplication of the element of in the underlying finite field f2m whose characteristic is two represented by the two basis of optimal normal basis and polynomial basis. we make improvements to the fast algorithm of the polynomial basis multiplication by hankerson and base on the experiments, we describe the properties and compare the advantages of the multiplication and inversion multiplication of the elements in f2m field under optimal normal bases and polynomial basis. results concluding from the study car be used as references in the realization of the elliptic curve cryptosystem ; fifthly, we overview the current fast algorithm of point multiplication, improve the fix base point comb algorithm, advance the speed of the whole system and remark the advantages and disadvantages of the popular algorithms based upon the experimental datas ; sixthly we realize the algorithm library of elliptic curve cryptography based on the f2m. only change slightly in our algorithm library can we realize the ecdh, eces, ecdsa based onf2m of anysize ; seventhly, we realize the ecc on two secure elliptic curves, including ecdh, eces, ecdsa

    本文首先介紹並分析了橢圓曲線密碼體制的優點及研究現狀;其次研究了橢圓曲線密碼體制的基本理論;第三,分析了橢圓曲線密碼的安全性並介紹了密鑰享,加密,數字簽名等橢圓曲線密碼體制;第四,深入研究了特徵為2的有限域f _ 2m中的素在多項式基和最優正規基表示下的乘法運算和乘法逆運算的快速演算法,並對hankerson等人提出的多項式基下的乘法運算的快速演算法作了改進,而且在實驗的基礎上不僅分析研究了f _ 2m域中素在多項式基和最優正規基表示下的乘法和乘法逆運算的性能,還對這兩種基表示下的f _ 2m域中素運算效率的優劣作了比較和研究,所得的結論可供在實現橢圓曲線密碼體制時參考;第五,研究了目前流行的計算橢圓曲線標量乘法的快速演算法,同時改進了固定基點梳形法,提高了整個系統的速度,並在實驗的基礎上分析研究了流行演算法的優劣;第六,實現了基於f _ 2m的橢圓曲線密碼體制的演算法庫,在我們的演算法庫中只需稍微改便能實現基於任意尺寸的f _ 2m上的ecdh , eces , ecdsa等橢圓曲線密碼體制;第七,實現了兩條安全橢圓曲線上的橢圓曲線密碼體制,包括ecdh , eces , ecdsa 。
  14. 5, some feasible approaches of landscape configurable adjustment are put forward according to possibility analysis of village population development and distributing over staffed, evaluation on landscape energy input benefits and landscape suitability. that is, in view of assuring farmer realize comparatively good living standard, all the summit and partial slope bench plateau ecotope ( about 325 - 473 666. 7m2 ) should be changed over forest ( grass ) landscape or other non - yielding landscape

    5 、通過對農村人口發展和人員分流可能性分析,評價了各景觀投能效益和景觀適宜性,提出了景觀結構性調整的可行途徑,即在保證20年後農民達到小康水平的情況下,農田景觀中的山頂和坡臺地景觀立地單約325 ? ? 473畝可以改為林(草)地景觀,或其他非生產性景觀。
  15. A new waveguide made of changing a wide wall of a rectangular waveguide to a uniform curved wall is called conformal waveguide. a kind of expression of approximate solution for domain mode of the new waveguide, including symmetric, unsymmetric arc, parabolic arch, hyperbolic arch, elliptic arch, etc., is constructed by using boundary condition of mental waveguide, variational method and boundary element method. by using the equivalence principle, an approximate calculating formula for equivalent resonant conductance of a narrow longitudinal halfwavelength slot cut in the curved wall of the unsymmetric arcrectangular waveguide is derived, and the result is shown. although this solution is approximate, it can solve the problem in designing the slotted antenna of such conformal waveguide

    把矩形波導一個寬面外突成均勻曲面構成的新波導統稱為形波導.利用金屬波導邊界條件、分法、邊界素法構造這種新波導中主模場的一種近似解表達式,包括曲面橫截線為對稱、非對稱圓弧,拋物線弧,雙曲線弧,橢圓弧等.然後根據等效原理,推導非對稱圓弧矩形波導曲面上窄的縱向半波長縫隙的等效諧振電導的近似計算公式,給出計算曲線.這種解雖然是近似的,但卻能解決這類形波導縫隙天線的工程設計
  16. Since the reform, budget accounting system have been revised many times however, with the development of socialist market economy system, the budget accounting environment is changing rapidly, government turn to offer public product and adjust market ; the range of the financial revenue and expenditure are diversified, the user of governmental accounting information expand constantly, the requisition of the governmental accounting information improves etc. it is inevitable for the revolution of budget accounting to enhance our government performance and establish modern government managerial system. we should draw lessons from international reform experiences and take the china - style road - the " stage - by - stage - going " way of the reformation

    但是,隨著社會主義市場經濟體制的發展,我國預算會計環境正在發生重要的化:政府和市場在社會經濟運行中的分工逐步明晰;政府職能重點轉向公品提供和宏觀調控;財政收支的內容和形式更加多樣化;近年實行的部門預算編制、國庫集中收付制度和政府采購制度等預算管理制度方面的改革;事業單位資金來源渠道多化和經營性業務的增加;政府會計信息使用者的范圍不斷擴大,對政府會計信息的內容和質量的要求不斷提高等。
  17. The hardware and software of electronic controlled system such as ecu, sensor circuit, injection circuit and ignition circuit are introduced. the control structure of twin chip and using share ram are advanced ; and it is good at real time and interference killing feature

    完成了電控噴射系統的ecu 、傳感器送電路、噴射與點火驅動電路等軟硬體設計,提出了雙晶的ecu硬體結構,並採用用ram的方式,提高了系統的實時性和抗干擾能力。
  18. The second chapter laconically introduces the western public service system and its reform in an international perspective, which establishes a pluralistic reference system for china

    第二章以國際比較的視角簡要概述西方國家公服務事業的體制及其革,為我國事業單位體制創新確立一個多的參照系。
  19. The first period : self - adaptation of the yeltin period first the adaptation started from the political creed, on politics, the cprf ' s traditional persistency of socialism was replaced by emphasizing on " renovated - whole " socialism and the proletariat ' s monarchy and violent revolutionary method were abandoned ; admitting the varied political regime, claiming to abide by the legal congressional road

    第一個時期:即葉利欽時期俄的自我調整。首先是綱領調整,政治上,俄從堅持傳統的社會主義轉為奉行「革新的,完全的」社會主義;放棄無產階級專政和暴力革命手段,承認多的政治制度,主張走合法的議會道路。
  20. Abstract : according to the variation in content of characteristic radioactive nuclide and the close relationship between high - grade associated elements in ore - forming components and gold, the ground gamma - ray spectrometry and x - ray fluorescence slectrometry can be used to reveal the existence of gold mineralization rapidly in field and make semi - quantitative evaluation of gold grade. this is of great significance in guiding field geological sample collection and mountain land engineering

    文摘:通過測定特徵放射性核素的含量化以及利用成礦組分中一些高品位素與金密切的相關關系,可利用地面伽馬能譜與x熒光測量在現場快速揭示金礦化的存在,同時對金的品位進行準定量評價,以及指導野外地質采樣和山地工程。
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