diffusion 中文意思是什麼

diffusion 解釋
n. 名詞 1. 散布，發散。
2. 傳播，普及。
3. 冗長。
4. 【化學】滲濾。
5. 【物理學】擴散，漫射。

  1. Many of the above-mentioned trends can be rationalized in terms of quasi-steady diffusion theory.

    上述的許多問題可用準穩態擴散理論加以推理。
  2. The diffusion process seems to be accelerating.

    傳播過程看來正在加速。
  3. 6 lucchese l, mitra s k. color segmentation based on separate anisotropic diffusion of chromatic and achromatic channels. iee proc

    在理論上，本文給出了對于線性四元數擴散方程的解，並對解進行了分析。
  4. Actuarial price of foreign currency driven by jump - diffusion stochastic process

    擴散模型下外匯期權的保險精算定價
  5. Error estimates of characteristic finite element method for nonlinear advection - diffusion equation

    非線性對流擴散方程特徵有限元法的誤差估計
  6. The modified method of characteristics with adjusted advection based on weno interpolation for nonlinear convection - diffusion equation

    對流擴散方程的基於加權本質非振蕩插值的調整對流的修正特徵差分解法
  7. The anti - microbial activities of crude ethanol extract from aerial parts of sophora alopecuroides and its petroleum ether, chloroform, n - butanol and water fractions of sophora alopecuroides to pythium aphanidermatum, fusarium oxysporum f. sp. cucumerinum, fusarium oxysporum f. sp. lycopersici, alternaria solani, pseudomonas pachrymans and xanthomonas vesicatoria were tested by mycelial radial growth test and agar - well diffusion

    本實驗採用帶毒平板菌絲生長法和瓊脂打孔藥劑擴散法測定了苦豆子地上部分乙醇粗提物及其石油醚、氯仿、正丁醇和水層的不同極性溶劑萃取物對瓜果腐霉、黃瓜枯萎病菌、番茄枯萎病菌、番茄早疫病菌、黃瓜角斑病菌和番茄瘡痂病菌的抗菌活性。
  8. Combined heat and mass transfer by natural convection which is caused by heat and mass diffusion can be seen in nature and some processes of industry, such as evaporation and desiccation. these processes relate to aeronautics, hydraulics, mechanics, chemical engineering, oceanography and aerography

    熱及物質擴散引起的傳熱傳質復合自然對流常見于自然界和蒸發、乾燥等工業過程，涉及到航空、水利、機械、化工、海洋、氣象等諸多領域，其流體力學和傳質傳熱特性一直是人們研究的重點。
  9. Optimization of agar diffusion bioassay for nisin

    瓊脂擴散法測定乳鏈菌肽效價的優化
  10. The agrotechnical diffusion, which begins with technological innovation, is the course that generalizes to the agricultural consumers by the technical extended organization

    農業技術的擴散是始自技術創新，經過技術推廣組織推廣到農業生產用戶的過程。
  11. On the foundation of standardizing the conception of agrotechnical diffusion, this article indicates that the agricultural diffusion is an important method to quicken the transform of agricultural technology, a way for the science and technology to make the agriculture product be modern scientific, a mean to make progress of agriculture, rural area, and increasing the farmers ’ income

    在對涉及技術擴散的概念進行規范的基礎上，說明了農業推廣是加快農業技術轉化的重要手段，是科學技術裝備農業，使農業生產現代化的途徑，也是實現農業發展，農村進步，農民增收的重要手段。
  12. It further discusses the operation mechanism of the system of agrotechnical diffusion and indicates that the essence of technical diffusion is information diffusion, and the system depends on the course which information flows from the fountainhead to the receivers. and it analyzed the ingredients which influence the information flowing in the system. intruding shannon ’ s information

    進一步探討了農業技術擴散系統的運行機制，並指出，技術擴散實質是信息的傳播，是建立在信息從信息源到接收者之間的流動過程，對技術推廣系統中影響信息流動的因素進行分析，引入shannon的信息熵計算方法，對信息接受者的信息接收含量進行測度，通過對所得的數值進行比較，運用定量與定性分析相結合的方法證明技術推廣活動的效率。
  13. This article takes the basic of agrotechnical diffusion as the main line, regards the whole system of agrotechnical diffusion as a dynamic consecutive course, and divided the course into three sub - systems, viz. science and technological innovation, technical diffusion and technical application. the contact of the three depends on the flow of information in different course in the whole system

    本文以農業技術擴散的基本路徑為主線，將整個農業技術擴散系統看做一個動態的連續過程，並將這個過程劃分為科技創新，技術推廣和技術應用三個子過程，它們在系統中的聯系是由信息在不同過程間流動來完成的。
  14. Effect of the carbon black on the electrical performance of gas diffusion electrode of zinc - air battery

    炭黑對鋅空氣電池空氣擴散電極電性能的影響
  15. Such factors as product trade, factor mobility, knowledge diffusion and technological diffusion make anfractuous relation lie in the system. so region is mutual related, not isolated. the economic growth of one region depends on not only its element devotion, but also growth traces of other regions

    但是，區域經濟是一個開放的系統，產品貿易、要素流動、知識和技術擴散等因素使得這些系統之間存在著錯綜復雜的聯系，這決定了區域經濟體之間不是孤立存在而是相互聯系的，一個區域經濟的增長不僅依賴于本身基礎和要素的投入也依賴于其它的區域增長的軌跡。
  16. Measurement of the steady and non - steady - state chloride diffusion coefficients in a migration test by means of monitoring the conductivity in the anolyte chamber comparison with natural diffusion tests

    很多混凝土科學工作者都在積極努力的發展氯離子傳輸和檢測理論及試驗室方法，目前理論及試驗室檢測標準眾多，但尚無明確的現場檢測標準。
  17. There is a good chance that this outward diffusion of neutrinos and antineutrinos plays a crucial role in the supernova explosion.

    中微子和反中微子的這種向外的散射很可能在超新星爆發中起著關鍵的作用。
  18. If the velocity of atoms is near to zero, the light for ces will tend to confine the atoms near to nodes and antinodes. the stability depends on the magnitude of the negative slope of the light force, the depth of the potential well and the momentum diffusion coefficient. it is important to select the parameters, e. g

    如果通過激光冷卻能使原子速度降至很小甚至為零，光壓力的作用將使原子被較穩定地囚禁于激光駐波場的節點和反節點處，其穩定程度取決于該處光壓力曲線負斜率的大小、對應勢能的勢阱深度以及動量擴散系數的大小，因此，如何在實驗中合理選擇激光強度、失諧量等顯得尤為關鍵。
  19. The annihilation of the octahedron voids at the tips of fpds was divided two processes : ( 1 ) the oxide on the void was removed by the out - diffusion of oi in the shallow region, especially the oi aroud the void and by the entry of the interstitial si atomics. ( 2 ) the void without oxide shrinked by emitting vacances and the migration of silicon atoms from edge to the bottom of void

    Fpds端部八面體空洞的消失分為兩個階段： （一）覆蓋在空洞各個內壁上的氧化膜由於高溫下矽片表面區域的間隙氧原子，尤其是空洞型缺陷周圍的間隙氧原子的外擴散及自間隙硅原子的進入，而逐漸變薄直至最終消失。 （二）無氧化膜的空洞，在高溫下發出一個個空位，同時八面體空洞周圍的自間隙硅原子不斷的從空洞的邊緣遷移至空洞的底部，使空洞逐漸變淺直至最後消失。
  20. The diffusion welding behavior of single - crystalline cu to single - crystalline - aio with a nb film interlayer and the joint microstructure properties were studied by tem, sem / eds analyses and four - point bend testing. the nb film interlayer deposited by electron beam evaporation on the ceramic side prior to diffusion welding was found to be olycrytalline and fiber - textured after diffusion bonding, with the close - packed plane ( 110 ) being parallel to the ( 0001 ) basal plane of - aio

    擴散連接技術是一門邊緣科學，涉及材料、擴散、相變、界面反應、接頭應力應變等各種行為，工藝參數多，雖然已經進行了大量的試驗研究，但卻對各種材料的連接機理尚未有明確的認識，為此人們試圖藉助于計算技術，對接頭行為進行數值模擬，以便找到共同規律，對擴散連接過程及質量進行預測與實時控制。
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