diameter coefficient 中文意思是什麼

diameter coefficient 解釋
直徑系數
  • diameter : n. 1. 直徑。2. （顯微鏡等的）放大倍數。
  • 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 relations between piezoelectric characteristic such as piezoelectric constant, electromechanical coupling coefficient, mechanical quality factor, etc. and its components, granular diameter and manufacturing technology were studied

    研究壓電材料壓電常數、機電耦合系數、機械品質因數等特性與其組份、顆粒直徑及製作工藝過程之間的關系。
  2. 1. 5 m in diameter ) were dispersed in n46 engine oil with different concentrations using ultrasonic respectively in order to study their tribological properties. the tribological experiments were carried out by mq - 800 four - ball tribometer and mm - 200 ring - on - block tribometer, in which extreme pressure properties, wear scan diameter, friction coefficient and wear volume loss were measured. the results showed that oil containing mos2 nanoparticles had a better wear resistance, friction - reducing and extreme pressure than the oil containing common mos2

    將上述制備得到的納米二硫化鉬顆粒和普通二硫化鉬粉末（ 1 . 5 m ）以不同濃度分散在n46機械油中，在mq - 800四球摩擦磨損試驗機上考察它們的最大無卡咬負荷（ p _ b值） 、耐磨性能和摩擦系數；並在mm - 200摩擦磨損試驗機上，通過環?塊摩擦副，比較和分析了它們的摩擦學特性。
  3. Some conclusions can be drawn from the experiment. first, the discharge coefficient of liquid is almost constant when the pressure before injecting is high enough, but the discharge coefficient of gas fluctuates because of the influence of liquid flowing. second, when the total pressure of gas is low, under the same total pressure, increasing the pressure before injecting or under the same the pressure before injecting, lowing the total pressure of gas make the mean diameter smaller

    流量特性試驗表明，在液體噴注壓降較高時，液體的流量系數基本不變，但是氣體的流量系數受液體流動的影響較大;霧化特性試驗表明，在同一氣體總壓條件下，增大液體噴注壓降或者在相同液體噴注壓降條件下，減小氣體總壓對液滴霧化有利。
  4. Then an thorough computer modeling using finite element program with material, geometry and state triple - nonlinear taken into account is carried out on a series of influencing factors, such as comparison with npn - beam splice connection, comparison of varies designed theories, and the varying of fraction coefficient, diameter, grade, pretension and arrangement of bolts, thickness of web and flanges of beam and column, splicing location, axial loading on column, etc. lots of useful conclusions are drawn form computer modelling. finally, design and construction suggestions are given out. this study fills the black in the field of steel beam - to - column connection with cantilever beam high - strength bolted - splicing at both home and abroad

    然後，本文在考慮材料、幾何和狀態三重非線性的基礎上，對該連接形式進行了全面的計算機模擬，主要考慮了帶懸臂梁段全螺栓拼接的樑柱連接節點與無拼接的樑柱連接及翼緣對接焊接腹板拼接的連接節點的對比，各種設計方法之間的對比，以及翼緣拼接和腹板拼接的螺栓間距、直徑和數量，拼接點與梁端之間的距離，梁和柱的翼緣、腹板厚度，柱的軸力，接觸面的摩擦系數，翼緣和腹板拼接板的厚度等因素的影響。
  5. At the same time, when the thickness - diameter ratio was larger than 1, it has little influence on the discharge coefficient for the hole configuration, but when the thickness - diameter ratio was less than 1, the discharge coefficient of the hole with across arrangement is higher than that with sequence arrangement

    同時，在氣膜孔厚徑比大於1時，氣膜孔的排列形式對流量系數的影響不大，當厚徑比小於1時，叉排氣膜孔的流量系數要高於順排氣膜孔的流量系數。
  6. The paper researches the relations between blasting effect and blasting parameters, including diameter of drill, non - coincidence coefficient, hole spacing, hole row - spacing, cartridge diameter, charge per hole, density of line charge, charging structure and detonating manner, and how to adjust the blasting parameters to get the best blasting effect under the given geological condition

    本文在重慶市某高速公路合同段進行了現場預裂爆破試驗的基礎上，研究了炮眼直徑、不耦合系數、炮孔間距、炮孔排距、藥卷直徑、單孔藥量和線裝藥密度、裝填結構、起爆方式等爆破參數與爆破效果之間的聯系，以及如何在給定的地質條件下調整爆破參數獲得最佳的爆破效果。
  7. Method to evaluate pile capacity precisely by using the coefficient of cleaning slime and coefficient of construction process and by controlling the total duration of construction is proposed herein after analyzing the influences of slime at pile bottom, thickness of mudcake by the side of pile, shape of hole wall, time of construction and construction process on the bearing capacity of large diameter cast - in - place pile

    本文通過分析樁底沉渣、樁側泥皮厚度、孔壁形狀、成樁時間及施工工藝等對大口徑灌注樁承載力的影響，提出了在樁承載力計算中引入清底系數及成樁工藝系數，並控製成樁總時間以較準確地評價單樁承載力的方法。
  8. On the loess plateau, water is the main limiting factors for vegetation growth. root distribution characters have special ecological meaning as it reflected the utilizations of trees to the environments. even - aged stands of robinia pseudoacacia on slope lands facing south and north were selected as sampling plots for root distribution investigation. investigatiing results showed that indicated that on all sites, root biomass decreased with depth, and the distribution depth of fine root was deeper than that of coarser root. the results of variance analysis indicated that there were great differences in root biomass among different diameter classes, and coarser root was the main sources of variance, and the root biomass, especially fine root ( < 3mm ) biomass on northern exposition sites was bigger than that on southern exposition sites. analysis of the vertical root distribution parameters, root extinction coefficient, indicated that the value of on northern exposition was more than 0. 982, while the value of on southern exposition was less than 0. 982, which indicated that the vertical root distribution depth of robinia pseudoacacia on southern exposition was deeper than that on southern exposition. and the distribution depth of fine roots ( < 1mm ) was deeper than that of thicker roots ( < 3mm ), which was in favor of the uptake of water and nutrients from deeper layers, helped the trees to adapt the arid environment, and promoted the growth of the upper parts of the tree

    在中國西北黃土高原地區，水分是樹木生長發育的主要限制因子.根系分佈特徵由於反映了樹木對環境條件的利用程度而具有更加特殊的生態意義.本研究選擇陽坡和陰坡不同立地上年齡一致的刺槐林調查了根系分佈特徵.根系垂直分佈特徵的調查結果表明，在所有立地上，根系生物量隨著深度的增加而降低，其中細根的分佈深度大於粗根的分佈深度.方差分析結果表明:不同立地上不同徑級根系的分佈特徵也有明顯的差別，粗根是差異存在的主要原因，陰坡立地上的根系生物量，特別是細根生物量大於陽坡立地上的.對根系消弱系數的分析結果表明，陰坡立地上的根系消弱系數大於0 . 982 ，而陽坡立地上的根系消弱系數小於0 . 982 ，說明陰坡立地上刺槐根系的生物量在深層土壤中的分佈相對量更大一些.其中細根的根系消弱系數大於粗根的，這種根系分佈特徵有利於根系對深層土壤水分養分的吸收利用，進而促進樹木地上部分的生長發育.圖3表3參15
  9. Abstract : on the loess plateau, water is the main limiting factors for vegetation growth. root distribution characters have special ecological meaning as it reflected the utilizations of trees to the environments. even - aged stands of robinia pseudoacacia on slope lands facing south and north were selected as sampling plots for root distribution investigation. investigatiing results showed that indicated that on all sites, root biomass decreased with depth, and the distribution depth of fine root was deeper than that of coarser root. the results of variance analysis indicated that there were great differences in root biomass among different diameter classes, and coarser root was the main sources of variance, and the root biomass, especially fine root ( < 3mm ) biomass on northern exposition sites was bigger than that on southern exposition sites. analysis of the vertical root distribution parameters, root extinction coefficient, indicated that the value of on northern exposition was more than 0. 982, while the value of on southern exposition was less than 0. 982, which indicated that the vertical root distribution depth of robinia pseudoacacia on southern exposition was deeper than that on southern exposition. and the distribution depth of fine roots ( < 1mm ) was deeper than that of thicker roots ( < 3mm ), which was in favor of the uptake of water and nutrients from deeper layers, helped the trees to adapt the arid environment, and promoted the growth of the upper parts of the tree

    文摘:在中國西北黃土高原地區，水分是樹木生長發育的主要限制因子.根系分佈特徵由於反映了樹木對環境條件的利用程度而具有更加特殊的生態意義.本研究選擇陽坡和陰坡不同立地上年齡一致的刺槐林調查了根系分佈特徵.根系垂直分佈特徵的調查結果表明，在所有立地上，根系生物量隨著深度的增加而降低，其中細根的分佈深度大於粗根的分佈深度.方差分析結果表明:不同立地上不同徑級根系的分佈特徵也有明顯的差別，粗根是差異存在的主要原因，陰坡立地上的根系生物量，特別是細根生物量大於陽坡立地上的.對根系消弱系數的分析結果表明，陰坡立地上的根系消弱系數大於0 . 982 ，而陽坡立地上的根系消弱系數小於0 . 982 ，說明陰坡立地上刺槐根系的生物量在深層土壤中的分佈相對量更大一些.其中細根的根系消弱系數大於粗根的，這種根系分佈特徵有利於根系對深層土壤水分養分的吸收利用，進而促進樹木地上部分的生長發育.圖3表3參15
  10. In the first part, the method of velocity coefficient was used to design a 100mm diameter impeller with five single - arc - cylinder blades, and the method of velocity moment was applied to design the volute " s cross - section. the volute " s cross - section is a rectangle, which was designed as a whole structure with the front shroud of the pump. a special lighting window was designed on the side

    在第一部分工作中，設計了一個帶半開式葉輪的微型泵：葉輪外徑100mm 、共5片單圓弧圓柱形葉片；蝸殼採用速度矩法設計，內為矩形斷面，和泵殼前蓋板為一整體、透明結構，側面專門設計一個打光窗口。
  11. Thus, the conclusion is drawn : when the diffusion coefficient of cf is invariable and the diffusion time is under a certain range, the beginning corrosion time of the steel in the corner of the rectangular section is independent of the size of rectangular section ; ( 4 ) through the numerical value calculation of rectangular section, the law is found of the influence on modifying coefficient of rectangular section of the thickness of protection layer of concrete and diameter of the steel and the thickness of cf on the surface of concrete, based on which practical calculating method of beginning corrosion time of the steel in the corner of rectangular section is set up

    從而得到結論：在氯離子擴散系數一定的情況下，在一定時間范圍內，矩形截面邊角區域鋼筋的初始銹蝕時間不依賴于矩形截面的截面尺寸； （ 4 ）通過矩形截面邊角區域鋼筋初始銹蝕時間的計算，分析了保護層厚度、鋼筋直徑、混凝土表面氯離子濃度對修正系數的影響，並在此基礎上建立了氯離子侵蝕下矩形截面邊角區域鋼筋初始銹蝕時間的實用計算方法。
  12. The velocity - coefficient method was used to design a 180mm diameter impeller with five single - arc - cylinder blades. the exit angle and inlet angle of the segment are 35. 1 and 36. 0 in degrees respectively. the shape volute ' s cross - section is the rectangle

    該葉輪採用速度系數法設計，轉輪外徑180mm ，共有5張單圓弧圓柱形葉片，其出口安放角、進口安放角分別為35 . 1度、 36 . 0度。
  13. Secondly, grounded on the study of the distribution of the high external waterpressure and high geostress and the characteristic of the rock in engineering area, the paper built the elastoplastic fem numerical simulation model, and think over the procedure in tunnels excavation and the history of work of water load, and then get the relations between the different tunnels diameter, different permeability coefficient and depth of the grouting rock and the deformation, stress distribution and plastic range of the surrounding rock and support structure. finally, according to the modern design theory of tunnels construction, the particular design of country rock reinforcement and support structure are researched and presented for diversion tunnels

    接著，本文在深入研究工程區高外水壓力及高地應力分佈規律及巖體特性的基礎上，建立起高地應力、高外水壓力作用下隧洞圍巖結構非線性有限元模擬計算模型，然後考慮隧洞的開挖過程、水荷載的作用歷史，通過計算分析得出了不同洞徑、不同的灌漿圈滲透系數和不同的灌漿圈深度以及不同開挖過程與圍巖及支護結構的應力、位移和塑性區的關系。
  14. Suggest the method of division to measure the largest compacted dry density of dam ' s material with super large diameter approximately. according to the research of predecessor, suggest applying the effective void ratio or the effective void rate to compute the coefficient of permeability approximately

    採用了表面振動法進行室內最大幹密度的研究，提出了比例法近似測定超徑粗粒土最大幹密度；在前人研究的基礎上，提出採用有效孔隙率或有效孔隙比的滲透系數近似估算。
  15. By using the solution developed and the frequency - dependent stiffness coefficient and damp coefficient, the dynamic behavior, especially the one concerned with the variation of the dimensionless maximum response along the depth, for the pile with finite length or with infinite length was studied. it was shown that to simplify computation a pile of finite length can be taken as the one of infinite length if the ratio of pile length to its diameter ( i. e. lid ) is greater than 15

    利用所得解，採用與頻率相關的剛度系數和阻尼系數的近似表達式，對有限長樁和無限長樁的動力特性特別是對最大無量綱響應沿深度的變化曲線進行了參數研究，表明在常見樁土參數下，當長徑比大於15時，可將有限長樁視為無限長樁以簡化計算。
  16. The definition of stability and repeatability of the laser frequency and factors affecting the stability of laser frequency were analysed. the normal methods used to stabilise frequency and produce double - frequency were explained. after analysing the working conditions and related parameters of the laser device, it was concluded that the laser tube should be put inside an insulating cover and an electric discharge tube with a bigger diameter and length, smaller wall thickness and a higher thermal conductivity coefficient should be chosen

    分析了激光頻率的穩定性、復現性的定義及影響激光頻率穩定的因素；介紹了常見的穩頻及產生雙頻的方法；分析論證了激光器雙縱模熱穩頻的使用條件和有關參數的關系，得到結論是：應將激光管裝在保溫罩內；選用放電管直徑及長度大、壁厚小、材料導熱系數大的放電管。
  17. Provide automatic test function of fiber diameter, directly observe fiber configuration on screen, and display the actual diameter of all fiber on - time. fast test speed, simple operation, and reduced personal error. automatically compute mean diameter, coefficient of variation and standard deviation of the tested fiber, the tested date can be printed out by excel

    提供了纖維直徑自動測量功能，可直接在顯示器上觀察纖維形態，實時顯示每根纖維的實測直徑；測量速度快，操作簡便，減少了人為誤差；可自動計算已測纖維的直徑平均值、變異系統和標準差，測試數據可以excel報表形式列印輸出。
  18. Parametric study indicates that steel thickness has small influence on the temperature field of cfst arch rib during construction, while diameter of tube has great influence. the thermal conductive coefficient of concrete has some influence on the temperature field ; but for the concrete with same aggregate, the coefficient varies in small range, so its influence is limited

    應用通用程序對混凝土硬化過程中截面溫度場的分析表明:鋼管壁厚影響較小，而管徑的影響較大;混凝土導熱系數對截面溫度場有一定的影響，但對于同一種骨料的混凝土，其影響不大。
  19. Because of the nonlinear effect caused by flow pattern, oil diameter and absorption coefficient etc, it is difficult to establish the measurement model

    但由於受流型、油泡直徑及吸收系數等因素的非線性影響，使得測量模型難于建立。
  20. The effects of the conductivity coefficient of adsorbent, heat transfer coefficient of water fluid and diameter of tube on the performances of the system have been analyzed

    在此基礎上分析了吸附床的導熱系數、真空管管徑、冷卻水管側的對流換熱系數對系統cop的影響。
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