mechanical elements 中文意思是什麼

mechanical elements 解釋
機械零件
  • mechanical : adj 1 機械的；機械制的。2 機械學的，力學的；物理上的（opp chemical）。3 機工的，技工的；自動的；...
  • elements : 德魯伊選擇元素
  1. The results indicate that : 1. the main physical and chemical characteristics vary regularly : with rising of the altitude, there is a transition from silt > sand > clay to sand > silt > clay in the mechanical composition ; the argic horizon emerges below the altitude of 1600 meters ; the content of organic matter is enrichment, the content of organic carbon of epipedon is higher than 20 g / kg, while the content of organic carbon increases with increasing of altitude, and in the altitude of 3500 - 3700meters, the soils under the meadow have the maximum content organic carbon ; the soils appear acid - slightly acid reaction, the ph decreases appreciably and acid strengthen with increasing of altitude ; the soils higher than the altitude of 2500 meters are base unsaturated, indicating the soil leaching is strong, the ph and bs are distinct plus correlated ; the contents of sio2, al2o3, and fe2o3 of the soil body and clay are all relatively stabilization ; in the soil body, the content of sio2 is much high and cao is very little, the total contents of sio2, a12o3 and fe2o3 occupy 92 % of the mineral parts, the sequence of mineral elements is : sio2 > al2o3 > fe2o3 > k2o > mgo > cao > tio2 > mno

    研究結果表明： 1太白山南坡土壤的主要理化性質隨海拔高度的上升呈有規律的變化：隨海拔高度上升，機械組成由粉粒砂粒粘粒逐漸過渡到砂粒粉粒粘粒，海拔1600m以下出現粘化層；土壤有機質豐富，表層有機碳含量一般在20g kg以上，有機碳含量隨海拔高度升高而相應增加，海拔3500 3700m的灌叢草甸植被下有機碳含量最高；土壤呈酸性或微酸性，並隨海拔上升， ph值略微降低，酸性增強，海拔2700m以上的土壤多呈鹽基不飽和狀態，表明土壤淋溶作用較強， ph值和鹽基飽和度呈極顯著正相關；土體與粘粒中的sio _ 2 、 al _ 2o _ 3 、 fe _ 2o _ 3含量相對比較穩定，土體中sio _ 2含量較高， cao含量較少， sio _ 2 、 al _ 2o _ 3和fe _ 2o _ 3含量之和約占土壤礦質部分的92 ，礦質元素含量的順序依次為： sio _ 2 al _ 2o _ 3 fe _ 2o _ 3 k _ 2o mgo cao tio _ 2 mno 。
  2. 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，認為微合金元素的細化晶粒，馬氏體的回火分解，殘余奧氏體的轉變，第二相的沉澱析出共同決定了微合金鋼的強韌化情況，特別是由於微合金元素的存在，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。
  3. Effect of alloying elements on structure and mechanical properties of bainite ductile iron in the step austempering in machine oil at room temperature

    合金元素對室溫油分級等溫淬火貝氏體球鐵組織和性能的影響
  4. The effects of various additives elements and doping methods on foam nickel electrode ' s performance were studied using constant current charge - discharge test. we compared two doping methods : mechanical mixing doping and chemical co - precipitation doping

    利用恆流充放電實驗等電化學測試方法研究了不同摻雜元素及摻雜方式對泡沫鎳電極的影響作用，對機械混合摻雜和化學共沉積摻雜進行了比較。
  5. Continuous mechanical handling equipment. safety code for conveyors and elevators with chain - elements. examples for safety of nip points

    連續機械裝卸設備.鏈式輸送機和升降機的安全規程.咬合點安全示例
  6. Specification for continuous mechanical handling equipment - safety requirements - conveyors and elevators with chain - elements - examples for guarding of nip points

    連續式機械裝卸設備規范.安全性要求.第18部分:鏈節式輸送機與升降機-嚙合點保護示例
  7. From the feature of the force and deformation of the tpih, 5 different elements are used to mesh the different zones of the tube, which are structural beam 3d elastic 4, structural pipe plastic straight 20, structural pipe elastic elbow 18, structural shell elastic 4 node 63 and contact 3d pt - to - surf 49 ; the contact problem is assumed to be flexible - to - flexible ; the temperature field is assumed to be body load. a mechanical model corresponding to reality has been established for numerical simulation. based on the above, the 3 - d fem numerical simulation of tpih has been carried out by using the ansys program

    針對加熱彎管過程的受力和變形特點，採用三維梁單元、三維塑性直管單元、三維彈性曲管單元、三維殼單元與三維點對面接觸單元等5種不同的單元分別對管毛坯不同區域進行劃分，並對接觸單元採用柔體-柔體的處理方法，將溫度場作為體載荷處理，建立了符合實際的加熱彎管問題數值模擬力學模型：在此基礎上，應用商用軟體ansys對加熱彎管過程進行三維有限元模擬與研究，獲得了成形時推力、彎矩、支撐力大小及其變化趨勢。
  8. Abstract : by utlizing abundant local resource of ytirium and combining the characteristics of magnesium, barium, calcium and silicon, a sort of composite nodulizer - ytirium - based heavy rare earth nodulizer was developed which is characterized by its good desulphurizing and deoxidizing rate effect, excellent effect to neutralize anti - nodulizing effect of trace elements, strong nodulizng effect and degeneration - resistance, good effect to fine matrix structure, decreased chilling tendency and wide scope of applicatiom using this nodulizer to produce some important castings such as water - cooled wall of blast furnace and roller could increase mechanical properties of central area and casting yield

    文摘:利用江西省豐富的釔基重稀土，結合鎂、鋇、硅、鈣等元素的特性開發了釔基重稀土復合球化劑，該球化劑具有脫硫、脫氧、抗干擾元素、球化和抗球化衰退能力強，細化基體組織，白口傾向小，適用范圍寬等特點，應用於高爐冷卻壁，軋輥等關鍵鑄件上可提高心部力學性能和工藝出品率。
  9. Ln power system full dynandc simulation, the electric - mechanical transient processes of dynamic elements of power system should be simulated in detail, and the detailed dynandc models of mid - term and long - term processes are necessary based on the research and analysis for the ndd - term and long - term models, the dynandc models, such as thermal power plant, hydraulic power plant, nuclear power plant and the automatic generation control ( agc ), which are necessary to power syst

    電力系統全過程動態模擬除了需要詳細模擬電力系統動態元件的機電暫態過程外，還要有詳細的中長期過程的模型。本文在綜合調查和分析的基礎上，研究了電力系統全過程動態模擬所需要的火電廠動力系統的數學模型、水電廠動態模型、壓水堆核電站模型以及自動發電控制（ agc ）模型及其演算法，並在電力系統全過程動態模擬軟體中得到了實現。
  10. Machine elements are elementary mechanical parts used as building blocks for the construction of most devices, apparatus, and machinery

    機械元件是基本的機械部分作為大多數裝置、儀器和機器的構建塊。
  11. Based on the theories of hybrid / mixed finite element method, the generalized energy functional including stress, mechanical displacement, electric displacement, electric field and electric potential is used, with the electric - potential relations and the constitutive equations of piezoelectric materials constrained, hybrid energy functional including mechanical displacement, electric potential and stress is gained. moreover, splitting in - plane components and transverse components, the mixed energy functional in which mechanical displacement, transverse stresses and electric potential as basic variables is derived. with the use of surface stress parameters of sub - elements, the continuity of transverse stress at interfaces between layers is obtained

    在回顧雜交混合有限元理論的基礎上，從包括位移、應力、應變、電勢、電位移、電場強度六個未知量的廣義壓電材料能量泛函出發，通過約束電場強度?電勢關系、應力與應變及電場強度的關系，得到僅包括位移、電勢、應力三個未知量的雜交變分泛函，利用一般層合板的雜交混合變分原理，分離面內分量和橫向分量，導出以位移、橫向應力、電勢為未知量的壓電層合板的修正變分泛函，作為壓電層合板的雜交元列式的理論基礎。
  12. Zirconium alloys are employed extensively in light water cooled reactors ( lwr ) as the cladding materials of fuel elements and other structural materials because of the low capture cross - section for thermal neutrons, good resistance to water - side corrosion at elevated temperature, adequate mechanical properties and high thermal conductivity

    由於鋯的熱中子吸收截面小，並具有優異的耐高溫水腐蝕性能、良好的綜合力學性能和理想的熱導率，因此，鋯合金被用作核電站水冷動力堆核燃料元件的包殼材料和堆芯的其它結構材料。
  13. Along with silicon ulsi technology has seen an exponential improvement in virtually any figure of merit, as described by moore ’ s law ; the miniaturization of circuit elements down to the nanometer scale has resulted in structures which exhibt novel physical effects due to the emerging quantum mechanical nature of the electrons, the new devices take advantage of quantum mechanical phenomena that emerge on the nanometer scale, including the discreteness of electrons. laws of quantum mechanics and the limitations of fabrication may soon prevent further reduction in the size of today ’ s conventional field effect transistors ( fet ’ s )

    隨著超大規模集成電路的的發展，半導體硅技術非常好地遵循moore定理發展，電子器件的特徵尺寸越來越小;數字集成電路的晶元的集成度越來越高，電子器件由微米級進入納米級，量子效應對器件工作的影響變的越來越重要，尺寸小於10nm將出現一些如庫侖阻塞等新特性。量子效應將抑制傳統晶體管fet繼續按照以前的規律繼續減小。在這種情況下，宏觀的器件理論將被替代，可能需要採用新概念的晶體管結構。
  14. With the development of high science & technology and precision theory, the influence of temperature on manufacturing and measuring accuracy of mechanical elements has been paid more and more attention to

    隨著現代高科技的發展和機械精度的迅速提高，溫度對機械加工精度和測量精度的影響越來越大。
  15. The time continuous mathematic models of typical control elements in the vehicle control system were developed by experiment, combining the time continuous mathematic models of traditional mechanical elements with that of typical electronic elements

    用實驗方法建立磁導航車體運動數字控制系統典型環節的時間連續數學模型，結合車體運動機械操縱環節的傳統數學模型建立整個控制系統的時間連續數學模型。
  16. In theoretical analysis, finite element method is firstly used to solve the mechanical - electric coupling problems in a flexible plate with piezoelectric elements and to obtain structural vibration modal shapes. focusing on collocated type of piezoelectric sensors / actuators, the maximum determinant of fisher information matrix criteria is chosen as the optimization function and then simplified to determine an optimal principle for the best location of piezoelectric elements

    本文研究柔性板振動控制中壓電元件的位置優化設計問題，針對壓電傳感器和驅動器的同位布置結構型式，將壓電元件的有限元分析方法與d優化設計準則相結合，直接利用結構的模態振型確定壓電元件在柔性板上的最優位置。
  17. Mechanical principle and mechanical elements

    機械原理與機械零件
  18. Launch the r & d and industrialization drive for a batch of important projects in the fields of informatization and key technology for equipment manufacturing industry ; precision and ultra - precision processing and examining technology and application ; advanced digitalized processing and special processing technologies ; integrated mechatronics control system and research of robot technology ; material molding technology and remanufacturing engineering for mechanical elements ; aviation and spaceflight equipment manufacturing technology and products and manufacturing of important technological equipment

    在裝備製造業信息化工程及其關鍵技術、精密與超精密加工檢測技術與應用、先進數控加工技術與特種加工技術、機電一體化集成控制系統與機器人技術的研究、材料成型技術與機械零件再製造工程、航空航天裝備製造技術及產品，以及重大技術裝備製造等領域，開展一批重大項目的研發和產業化建設。
  19. Kionix manufactures inertial sensors using plasma micromachining, a highly - refined, proprietary, deep reactive ion etch drie fabrication technology. the resulting products are ultra - small mechanical elements integrated with electronics to create microelectromechanical systems mems

    Kionix的慣性sensor採用的plasma微機電製程，是一種經高度改良且有獨家專利製程，使產品的機械結構部份做到最小並同時與電子電路結合形成一先進的微機電產品
  20. This subject is supported by national natural science foundation of china ( " research on fundamental theory of thermal error for mechanical fit and its application ", no. 50075023 ). the theory on thermal deformation of mechanical elements in non - uniform temperature distribution is mainly studied. many experiments have been finished and some new ideas have been attained

    本課題來自於國家自然科學基金項目「機械配合熱變形誤差的基礎理論與應用技術研究」 （項目編號50075023 ） ，主要是對非均勻溫度場的熱變形進行理論研究，同時進行了大量的實驗，取得了一些成果。
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