length diameter ratio 中文意思是什麼

length diameter ratio 解釋
長度直徑比
  • length : n. 1. 長，長度，長短。2. （時間的）長短，期間。3. （賽艇的）一艇的長度；一馬的長度。4. 程度，范圍。5. 【板球】球程；投至適當距離的球。6. 【語言學】音長。7. 一段，一節。
  • diameter : n. 1. 直徑。2. （顯微鏡等的）放大倍數。
  • ratio : n. （pl. ratios）1. 比，比率，比值；比例；系數。2. 【經濟學】復本位制中金銀的法定比價。vt. 1. 用比例方式表達；求出…的比值；使…成比例。2. 將（相片）按比例放大或縮小。
  1. For increasing the effective material peak - value power ( empvp ), solving the contradiction between enhancing the pmsm ' s flux - weakening capability in the electromotor state and reducing the pmsm ' s connatural adjustment ratio in the dynamotor state and improving the efficiency of the pmsm, some solving method are taken as follows : the influence of length / diameter ratio to the empvp is analyzed, and the optimum size of length and diameter is chosen

    主要是從提高電機的有效材料峰值功率、解決pmsm提高電動機運行狀態時的弱磁擴速能力和減小發電機運行狀態時的電壓調整率之間的矛盾及提高電機的效率著手，分析了長徑比、氣隙長度對有效材料峰值功率的影響，並確定了它們的最佳尺寸。
  2. Since the discovery of cnt ’ s and find that cnts have small diameter and high length diameter ratio and can be look as one - demission material, it can be used as emission emitter of fed. especially, the aligned cnts array can be seen innumerable single cathodes which are lined regularly and form array. so growing aligned cnts array in selective area is the key technology to product cnts fed, which is also the necessary condition of cnts micro - electronics device

    自碳納米管發現以來，由於碳納米管的直徑很小、長徑比大，故可視為準一維納米材料，可作為場發射平板顯示的尖端發射體，特別是定向碳納米管陣列可看成是無數根單尖陰極規則的排列起來形成陣列式，是理想的場發射平板顯示器的尖端發射體。
  3. Based on this model, the effects of geometric and structural parameters, such as injection pressure, rear pressure, length - diameter ratio, inlet round angle - radius ratio and non - axis symmetry of nozzle, on the distribution of the cavitation inside the nozzle are analyzed

    基於這一模型進一步分析了噴射壓力、背壓和噴孔長徑比、噴孔入口圓角比、非軸對稱噴孔等幾何結構參數對噴孔內空穴分佈的影響。
  4. Also the influences of the length, diameter, and the ratio of the stiffness of pipe to the stiffness of soil on the bearing mechanisms are discussed. based on these, some useful conclusions are reached

    然後從樁長、樁徑以及樁土剛度比等角度分析了其對單樁承載力、內外側摩阻力、樁端平面應力分佈、軸向荷載傳遞、樁身截面位移等的影響。
  5. The sealing property problem for the stirring shaft of high - speed pressured reaction axe with large length to diameter ratio is always a difficult problem to study for design era and users

    摘要高速大長徑比壓力反應釜攪拌軸密封性能問題一直是設計者與使用者研究的難題。
  6. The experimental research verified that this method had probed a new way for solving the sealing problem of stirring shaft of high - speed pressured reaction axe with large length to diameter ratio

    實驗研究證明，該方法為解決高速大長徑比壓力反應釜攪拌軸密封問題探索了一種新途徑。
  7. On the basis of magnetic fluid sealing principle and micro - nano characteristics, this paper studied and designed a kind of new micro - nano magnetic fluid sealing structure that could satisfy more nicely the sealing requirements of stirring shaft of high speed pressured reaction axe with large length to diameter ratio, and by means of experiment the optimization de sign was carried out on its relevant parameters

    該文根據磁性流體密封原理和微納米特性，研究設計了一種能更好地滿足高速大長徑比壓力反應釜攪拌軸密封要求的新型微納米磁性流體密封結構，並通過實驗對其相關參數進行了優化設計。
  8. Analysis of al2o3 - si2o short fiber structure and length diameter ratio

    短纖維結構與長徑比分析
  9. Length to diameter ratio of screw

    螺桿長徑比
  10. Screw length - to - diameter ratio

    螺桿長徑比
  11. Furthermore, it was shown that load - displacement of pile groups and load distribution on pile top were affected by properties of soil and stiffness ratio of piles to soil, and by length, diameter, spacing, and number of piles

    在此基礎上，分析了剛性承臺條件下超大群樁基礎的荷載位移曲線變化規律以及樁頂荷載分佈規律受樁土剛度比、樁長、樁徑、樁距、樁數、土性等因素的影響規律。
  12. 2. all the corresponding parameters of a. sylvestris were similar with c. smyrnioides in procreate period in april. but the parameters of root length, diameter of root, volume of root, leaf biomass, root biomass, total biomass, root mass ratio ( rmr ) and sla had the maximal value in moderate treatment in vegetative period in january

    峨參的相應生長參數在4月生殖生長期與明黨參隨土壤水分的變化趨勢相似；但在1月份的營養生長期，根長、根粗、根體積、葉生物量、根生物量、總生物量、 rmr和sla均以中度水分條件最大。
  13. At the same time, the program corresponding to the proposed method is compiled in fortran90, which is used to analyze the influence of several factors on behaviour of barrettes, including ratio of length to width, ratio of depth to equivalent diameter, ratio of modulus of pile to soil, possion ' s ratio, the finite layer etc. many useful conclusions are obtained from the above analyse

    該方法考慮了壁板樁樁身橫截面的非軸對稱性，並用fortran語言編制了相應的程序，進而分析了多種因素對壁板樁承載特性的影響，包括長寬比、樁徑比、樁土剛度比、泊松比以及有限壓縮層深度等。
  14. At the same time, the corresponding programs on the above two methods can be compiled in frotran90 respectively, which are used to analyze the influence of several factors on behaviour of barrette pile group and barrette pile group - soil - cap interaction, including collocation of pile, ratio of length to width, pile spacing, ratio of depth to equivalent diameter, ratio of modulus of pile to soil, possion ' s ratio, the finite layer, the number of piles etc. lastly a series of model tests on vertically - loaded bahaviour of single pile are made, tests results are analyzed, and the causes of tests failure are preliminarily discussed in this paper

    分析了群樁布置形式、長寬比、樁與樁之間的相對距離，樁徑比、樁土剛度比、泊松比、有限壓縮層深度以及群樁根數等因素對壁板樁群樁和壁板樁群樁?土?承臺的相互共同作用問題的影響。論文最後做了一組壁板樁和圓形樁單樁模型試驗，對試驗數據進行了分析，並對試驗中存在的問題進行了初步探討。
  15. The content of granule dimension measure include granularity as well as parameter distributing and figure, length - width ratio and length distributing, thick and diameter distributing, the content of orientation include orientation distributing and chart designed

    顆粒尺寸測量包括粒度和粒度分佈參數及圖形；長徑比及長徑分佈，徑厚比及直徑分佈；方位測量包括方位分佈及制圖等。
  16. The threshold speed and the typical characteristics of the oil whip of the system are simulated under the nonlinear model of oil film force, and the state of motion and type of the bifurcation are analyzed by floquet multiplicators which is computed by the shooting method. secondly, the the nonlinear dynamical model of the low - pressure rotor - bearing system by column bearing with reduced dimensions is presented. the numerical results show the rule of the amplitude with the eccentricity of rotor, the length - to - diameter ratio, oil viscosity and the clearance - to - radius ratio of the bearing under the definite speed

    其次，對降維后的低壓轉子?軸承系統的非線性動力學方程，計算了圓柱瓦軸承支撐的轉子系統的振動穩定性在固定轉速下隨偏心距、軸承長徑比、潤滑油動力粘度和軸承間隙比的變化規律，並分析了轉子前軸承軸頸的失穩轉速與轉子偏心距、軸承長徑比、潤滑油動力粘度和軸承間隙比之間的關系，同時利用floquet理論分析其運動狀態和分岔類型。
  17. The maximum service temperature of magnet is changeable due to the ratio length, diameter, coating and environmental factors

    最在工作溫度依賴于磁體的長徑比、塗層和環境因素。
  18. The experiment results indicate that needle - like single crystal with 1mm in length, 60 - 80 in length / diameter ratio can be gained by hydrothermal method

    實驗結果表明，利用水熱法可以獲得平均長度為1mm ，長徑比為60 80的針狀羥基磷灰石晶須。
  19. Uniform distribution of cavitation at the nozzle exit section is obtained by increasing length - diameter ratio and leads to the improvement of atomization

    從燃油空穴霧化理論的角度出發，空穴強度的提高以及在出口截面上的均勻分佈都有利於燃油的破碎霧化。
  20. We take depth research of steel fiber polymer concrete reinforced principle from the compound mechanics theories and interval theories, summing up the material function influence regulation of the different length - diameter ratio steel fiber, revising to establish the mechanics model of confusion direction distributing steel fiber polymer concrete

    從復合力學理論和纖維間距理論對鋼纖維聚合物混凝土的增強機理進行了深入的研究，總結出了不同長徑比的鋼纖維對材料性能影響規律，修正建立了符合亂向分佈的鋼纖維聚合物混凝土的力學模型。
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