density current 中文意思是什麼

density current 解釋
密度流
  • density : n. 1. 稠密；濃厚。2. 【物理學】濃度；密度；比重。3. 愚鈍，昏庸。
  • current : adj. 1. 通用的，流行的。2. 現在的，現時的，當時的。3. 流暢的；草寫的。n. 1. 水流；氣流；電流。2. 思潮，潮流；趨勢，傾向。3. 進行，過程。
  1. At a definite temperature a mesoscopic circuit isnt in a determinate quantum state instead of in the mixed state ( or statistical state ). using the density matrix of the canonical ensemble, we have deduced the formulate of the quantum fluctuations of both charge and current in a non - dissipative mesoscopic coupled circuit. and the dependences of the quantum fluctuation of the circuit on its temperature have obtained

    在有限溫度下，介觀電路系統實際上並不處在一個確定的量子狀態，而是處在混合態.根據正則系綜的密度矩陣導出耦合互感電路中電荷和電流的量子漲落，得到了量子漲落與溫度的依賴關系
  2. The presence of a large density of contaminant causes anomalous increases in the diode current with increasing reverse bias.

    大量沾污也會使二級管電流隨反向偏壓的增加而呈現反常的增大。
  3. The overvoltage varies inversely with the current density to some extent.

    超電壓在某種程度上隨電流密度成反比地變化。
  4. Tunneling process is important in the low to moderate current density range.

    在中等及中等以下電流密度下，隧道穿透過程是重要的。
  5. Measure current density by probe method

    電弧的電流密度
  6. Image current image current density

    像電流影像電流
  7. The weight of coating and current density has the direct ratio relation

    電鍍層的量隨著電流密度的增大而增大。
  8. Probability current density

    幾率淋度
  9. Anodic current density

    陽極電流密度
  10. Based on the relative data of density flow in xiaolangdi reservoir in flood period of 2001, and through analyzing on water - sediment condition of density flow formed and movement element of density current, the common movement law and special phenomenon on forming, operating and discharging sediment of density flow in xiaolangdi reservoir have been clarified in this paper. the relationship of sediment transport of density flow has been explored combining with theory analysis and formula deduction

    本文主要依據2001年洪水期小浪底水庫異重流的有關資料，通過對形成異重流的水沙條件、異重流運動要素的分析，闡明了小浪底異重流的形成、運行和排沙等方面的一般運動規律和特殊現象，結合理論分析和公式推導，探討了異重流輸沙關系。
  11. The discharging sediment with density current is an only measure to reduce reservoir region " s deposition in the reservoir with storage operation on the overloaded river and an important mode to discharge sediment for deposition reduction as well

    異重流排沙是多沙河流上的水庫蓄水運用時唯一能夠減少庫區淤積的措施，也是水庫排沙減淤的一種重要方式。
  12. On the one hand, the sediment density current often does a great harm to the reservoir, and causes a big loss of reservoir ' s storage capacity or makes reservoir severe deposition ; on the other hand, sediment outflow by density current is an effective measure to mitigate sedimentation

    異重流（本論文中主要指因含沙量的差異而形成的渾水異重流）一方面常常給水庫帶來嚴重的危害，加速水庫的淤積和庫容的損失；但另一方面它又為水庫排沙提供了一種極為有效的途徑? ?水庫異重流排沙。
  13. Analysis of density current characteristic in xiaolangdi reservoir et

    2004年小浪底水庫異重流特性分析
  14. The salinity distribution characteristics are the high - salinity in the bohai bay and the low - salinity in the boahi strait. the density distribution shows that there is a large cyclonic density circulation in bohai sea and it is likely to exist some density current gyre in the middle part of the bohai sea. in winter the saddle - like pattern of the bohai sea temperature and salinity shows that the circulation structure is much complexer than the previous research results

    密度分佈表明：夏季渤海灣口已經由以前的低密度中心變為現在的高密度中心，相應的環流結構也必會發生大的變化；夏季渤海中部會存在一個反氣旋式的密度環流，並在局部可能存在多個密度流渦環；冬季渤海「馬鞍狀」溫鹽結構反映其密度環流結構要比以往研究結果復雜得多。
  15. It is necessary to study on the sediment density current

    研究異重流具有非常重要的現實意義。
  16. Longitudinal distribution law of sediment concentration in unsaturated and heterogeneous density current

    異重流非飽和非均勻沙含沙量的沿程分佈規律
  17. The sediment density current is very complicated. the contributions by this thesis supply a good basis for further study on the density current. so it has a practical value

    本論文中所推導出的雙層計算模式下的異重流方程可作為今後建立異重流數學模型的基礎，具有一定的應用價值。
  18. After a comprehensive review on the study of sediment density current in the recent several decades, a set of differential equations for 2 - d density current under double - layer computational mode is established. by simplifying th. set of equations, a 2 - d numerical simulation of sediment density current and sediment outflow has been made in the liujiaxia reservoir in the yellow river basin, and the result is reasonable

    本論文在對異重流運動近幾十年來的研究成果進行較系統、全面論述的基礎上，針對目前研究較為前沿的異重流運動數值模擬問題，提出了一套二維異重流雙層計算模式下的基本方程，並在這套方程簡化的基礎上，對黃河流域劉家峽水庫中的異重流運動和排沙進行了二維數值模擬，結果令人較為滿意。
  19. The thesis " main studies and achievements are as follows : 1. under the assumption of double - layer computational mode, the governing equations for the horizontal 2 - d stratified density current is derived by integrating the 3 - d fundamental equations along the flow depth. 2

    在異重流雙層計算模式下，從三維水沙基本方程出發，利用數學工具沿垂線積分，推導得出了平面二維異重流上、下兩層水體的水沙運動基本方程。
  20. To study common law of producing, transporting and discharging sediment of density flow in xiaolangdi reservoir is convenient to using density current better for serving the production and providing scientific basis for regulating water - sediment in xiaolangdi reservoir. simultaneously it has an important reference value for storage operation of reservoir on the overloaded river and provides valuable data for theory development of density current

    研究小浪底水庫異重流的產生、輸移和排沙等方面的一般規律，便於更好的利用異重流為生產服務，為小浪底水庫調水調沙運用提供科學依據，同時對多沙河流水庫的蓄水運用具有重要的參考價值，為異重流理論發展提供寶貴的資料。
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