tube coefficient 中文意思是什麼

tube coefficient 解釋
電子管參數
  • tube : n 1 管，筒；顏料管。2 管狀地下隧道；〈口語〉（倫敦的）地下鐵道。3 【炮】炮身；【汽鍋】鍋管；【解...
  • coefficient : adj. 共同作用的。n. 1. 共同作用；協同因素。2. 【數，物】系數，率；程度。
  1. The calculation modes of the coefficient of shrinkage and creep of the bulgy core concrete in steel tube are discussed. based on a few reasonable hypotheses and the stress - strain relation of concrete acquired by the " adjusting valid modulus depending on load time " method, a compact formula is reasoned out, which is applied to calculate the equivalent elastic modulus of the bulgy core concrete considering the affection of shrinkage and creep. so, the analysis of the affection on cfst arch bridge by shrinkage and creep can be progressed by pole - girder fem, further more, the analysis precision is quite high

    本文還對核心膨脹混凝土特殊的收縮、徐變系數計算模式展開了探討，在合理的假設前提下，採用「齡期調整的有效模量法」得到的混凝土的本構關系，推導出鋼管內核心混凝土在考慮徐變影響后的等效彈性模量計算公式，並以此為基礎採用桿系有限元方法來對鋼管混凝土拱橋進行較高精度的收縮徐變分析。
  2. Thirdly, the correlative coefficient is computed between the pressure fluctuation signal of draft tube and the displacement signal of upper guide bearing, the thrust bearing and the head cover, with this the conclusions on the shafts response due to pressure surge in

    並與模型尾水管壓力脈動試驗結果進行對比?結合流動模擬試驗以及動力特性計算結果，全面分析?評定機組的實際運行狀況，劃定運行區域，為電站合理調度
  3. Results show when velocity of flow remains unchanged in the onflow area and openness of the tube is changed, then resistance coefficient changes obviously

    實驗結果表明：在湍流區域內流速（量）不變時，改變管件開度，阻力系數變化較顯著；改變流量，管件開度不變時，變化不大。
  4. Acoustics. testing of architectural acoustics. determination of sound absorption coefficient and impedance in a tube

    聲學.駐波管法測定標準入射角聲阻抗和吸音率
  5. The results indicate that the qualitative behavior in this process is similar to that observed in condensation of vapor at or above atmosphere pressure, the coefficient of heat transfer for condensation in tube, the coefficient of heat transfer in total increase with the increasing of heat flux density and vapor pressure. however, heat flux density and vapor pressure have a more significant effect on them

    發現水平管內低壓蒸汽冷凝過程與常壓條件下蒸汽冷凝過程相同，管內冷凝傳熱膜系數、總傳熱系數隨熱流密度、蒸汽壓力的增大而增大，但熱流密度、蒸汽壓力對低壓蒸汽冷凝有著更為顯著的影響，管外冷卻水流量對其影響並不明顯。
  6. The investigation on the evaporation heat transfer characteristics in a horizontal micro - fin tube for r290 - 3gs mixture shows : a ) the average evaporation heat transfer coefficient of the mixture increase with the increasing of the mass flux

    R290含油混合物在水平微肋管內流動沸騰換熱特性的實驗研究表明： a ）隨著質量流率的增加，含油混合物微肋管內的沸騰平均換熱系數增加。
  7. Jet impingement cooling is an advantage method in heat transfer enhancement owing to its extremely high local heat transfer coefficient and simple structure. as regard as the combustor flame tube cooling structure is concerned, the impingement - converse convection - film composite cooling is an effective method, in this composite cooling structure, the impingement cooling problem could be modeled as impingement inside semi - confined channel

    對于沖擊-逆向對流-氣膜復合冷卻的火焰筒結構而言，火焰筒壁面冷氣側的沖擊冷卻實質上是半封閉通道的沖擊冷卻，即沖擊射流從沖擊孔板噴出，沖擊到換熱靶面后形成壁面射流沿通道單方向流出。
  8. Study on friction resistance coefficient of straight tube

    直管摩擦阻力系數的研究
  9. Sliding friction coefficient of granular and powder mixture in inclined tube

    顆粒和粉體混合物沿斜滑道的滑動摩擦系數
  10. Finned tube is welded the finned helix pieces on the smooth tube, expanding 4 ~ 10 times of the heat transfer surface, highly elevated the heat - transfer coefficient of the tube to reach the purpose of rapid, efficient heat transferring

    翅片管是在鋼管外表面焊上螺旋型翅片，擴展外表面傳熱面積4 10倍，大幅提升管子的傳熱系數，達到高效快速傳熱的目的。
  11. The heat supplying system adopts the imported sus316 plate type heat exchanger, with the heat transferring coefficient 3 times bigger than the shell & tube type exchanger, facilitating the system to reach to required working temperature in shorter time

    換熱系統選用進呂sus316板式換熱器，其傳熱系數為殼管式換熱器的三倍以上，能在較短時間內達到所需的工作溫度。
  12. At the initial stage of planar technique, b was employed as ideal diffusion impurity in base - region of npn si planar devices because of the match of its solid - solubility and diffusion coefficient in si with those of p in emission - region, and the good shield effect of sio2 film to b. but because of the relatively large solubility ( 5 1020 / cm3 at 1000 ) and the small diffusion coefficient, the linear slowly - changed distribution of acceptor b in pn junction can not be formed, which could not cater to the requirement of high - reversal - voltage devics. thereafter b - a1 paste - layer diffusion technology and close - tube ga - diffusion technology had been developed, while the former can lead to relatively large the base - region deviation and abruptly varied region in si, which caused severe decentralization of current amplification parameter, bad thermal stability and high tr ; the latter needed the relatively difficult pack technique, with poor repeatability, high rejection ratio, and poor diffusion quality and productio n efficiency

    在平面工藝初期，由於b在硅中的固溶度、擴散系數與n型發射區的磷相匹配， sio _ 2對其又有良好的掩蔽作用，早被選為npn硅平面器件的理想基區擴散源，但b在硅中的固溶度大（ 1000時達到5 10 ~ （ 20 ） ，擴散系數小， b在硅中的雜質分佈不易形成pn結中雜質的線性緩變分佈，導致器件不能滿足高反壓的要求，隨之又出現了硼鋁塗層擴散工藝和閉管擴鎵工藝，前者會引起較大的基區偏差，雜質在硅內存在突變區域，導致放大系數分散嚴重，下降時間t _ f值較高，熱穩定性差；後者需要難度較大的真空封管技術，工藝重復性差，報廢率高，在擴散質量、生產效率諸方面均不能令人滿意。
  13. Based on the theoretical model, effects of influence of slenderness ratio, the changing steel ratio, strength of the steel and the concrete, load eccentricity ratio as well as pre - stress coefficient on the bearing capacity of the members considering influence of pre - stress in steel tube was discussed

    分析了長細比、截面含鋼率、鋼材屈服強度、混凝土強度、荷載偏心率和初應力系數等因素的影響； 4提出了考慮鋼管初應力影響時鋼管混凝土構件承載力實用驗算公式。
  14. By quantitative calculation and analysis, this article will discuss the application in power plant of a new kind pipe - double sides micro - finned heat transfer enhancing tube, which is widely used in research due to its high heat transfer coefficient

    雙側微肋強化換熱管是一種新型換熱管，由於其高換熱系數得到廣泛研究與應用，但對于換熱面較多的熱電廠來說應用還未見有報道。
  15. The highest heat transfer coefficient for air flowing in the nine 3 - d ift with staggered arrangement fins is no9 tube

    過渡流區和層流區的熱力性能系數分別為2 . 74和1 . 06 。
  16. Abstract : in the internal circulating fluidized bed, there exist the moving zone, fluidizing zone and heat transferring zone with different fluidized air velocities. the convection heat transfer coefficient of immersed tube in the heat transferring zone is impacted by the velocity of the moving zone nearby and its data and change trend are obviously different with those of the common bubbling bed. the maximum heat transfer coefficient is evidently higher than that of the bubbling bed. as the bed materials have not been fluidized in the heat transfer zone, the coefficient has increased highly. the curve of that changes gently, feasilble to control the combustion intensity in the fluidizing zone

    文摘:垃圾焚燒系統中，內旋流流化床存在不同布風速度的移動區、流動區和換熱區，處于換熱區的埋管的對流換熱系數受附近流動區氣流參數的影響，其變化趨勢及數值大小與普通鼓泡型流化床之間有明顯不同：最大的對流換熱系數明顯高於鼓泡床；換熱區尚未流化時，對流換熱系數已經大幅提高；整條換熱曲線的變化比較平緩，易於流化床濃相床內換熱。
  17. Through experimentation, we compare the heat performance of hhchp with that of a solar water heater of glass vacuum tube ( abbreviated as hgvt ). the heat performance of a solar water heater includes instantaneous efficiency, average heat efficiency and heat loss coefficient

    通過大量的實驗，對蜂窩熱管平板式太陽能熱水器和全玻璃真空管式太陽能熱水器的熱性能進行比較，包括瞬時效率、日平均效率、熱損系數等。
  18. In this condition heat convection inside and outside of tube are coupled. coefficient of convective heat transfer inside and outside of tube gotten through such way compare with coefficient of convective heat transfer inside and outside of tube gotten through by electricity. for comparability between this two condition, the average heat flux on the tube must be equal for this two condition

    這種情況下管內外對流換熱是藕合的，得到的管內外對流換熱系數分別與電加熱管道壁面的邊界條件下管內和管外流動的對流換熱系數相對比，為了使他們具有可比性，我們規定在這兩種邊界條件下通過管子的平均熱流密度相等。
  19. Enhanced heat transfer tube with spiral - surface has simple frame, cheap cost, and wide - ranging purpose. only few dirt can adhere to it and is easy to be washed. it has distinct strengthen effect, and can improve chief heat transfer coefficient at 35 - 40 % comparing with smooth tube exchanger which has same volume and pump power consumption

    螺旋型表面強化管結構簡單，成本低廉，用途廣泛，結垢少且易清洗，其強化效果明顯，與體積、消耗泵功率相同的光管式換熱器相比，螺旋槽管換熱器可以將總傳熱系數提高35 40 ，因而備受人們青睞。
  20. Normally, coefficient of convective heat transfer is gotten through experiments which is heating testing tube by electricity and computed through newton cooling law

    通常，對流換熱系數是在實驗中以電加熱試驗管壁面后根據牛頓冷卻定律計算得來的。
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