diameter of section 中文意思是什麼
diameter of section
解釋
截面直徑-
Firstly, simulate flow field of rear smoke channel, plot velocity magnitude and ash concentration distribution in section of entry of heat pipe air preheater, compare with data which were measured in guiyang power station, verify simulation to be reasonable and right. secondly, simulate all kinds of factors which affect flow field ' s uniformity such as length, thickness, location of diffluent board, ash concentration, ash diameter, and so on, find the chiefly factors. thirdly, install guide board in curve channel in rear smoke channel, then simulate its " flow field, plot velocity magnitude and ash concentration distribution
在此基礎上模擬在冬夏兩季不同情況下，不同流速對熱管空氣預熱器壁面溫度的影響；然後對影響整個流場分佈的各種因素：包括分流板長度、厚度、偏離中心流道位置的偏離度、飛灰濃度、飛灰粒徑等因素進行數值模擬；最後提出在分流煙道轉彎處加裝導流板，並模擬加裝導流板后的流場分佈，得到下級空氣預熱器出口、熱管空氣預熱器進口處的斷面速度場分佈、濃度場分佈，以論證加裝導流板能達到流場均勻化的作用。 -
The beyond is the simple notation of serial number of pricker, totaled 7 digits of codes, in which the first digit represents the diameter of needle - bar of pricker, the second digit represents the siding of triangle side on functional section of pricker, the third digit represent the length of functional section of pricker, whereas in standard notation, it represents the distance from needlepoint to gradual deflating small port ( lower port ), the fourth digit represents the total length of pricker, which is the distance from the inside of bending helve to the needlepoint, the fifth digit represents the total quantity of dents on the cording of functional section, and the sixth digit represents the model of barb on functional section, while the seventh digit represents the distance between barbs on functional section
以上為刺針編號的簡單寫法，共7位代碼，第一位是刺針針桿的直徑；第二位是刺針工作段三角面的邊寬；第三位是刺針工作段的長度，同標準寫法所不一樣的是針尖到漸縮錐小口（下口）的距離；第四位是刺針的總長度，按彎柄內側至針尖的距離；第五位是工作段棱上的總齒數；第六位是工作段上鉤刺的型號；第七位是工作段上鉤刺與鉤刺之間的距離。 -
The species, heights, diameter breast heights, canopy widths and plant numbers in 38 quadrats of 6 belt transects, which were located in yingsu cross - section and kaerdayi cross - section lying in the lower reaches of tarim river where populus euphratica concentrated, were investigated to study the distribution patterns, aggregation intensities and distribution pattern scales of p. euphratica populations at different distances away from the river
摘要在塔里木河下游胡楊分佈集中的英蘇、喀爾達依斷面，設置了6條樣帶38塊樣地進行植被種類、高度、胸徑、冠幅、株數等因子調查，研究了不同離河距離胡楊格局分佈類型、聚集強度及其格局規模。 -
The critical concentration and critical particle surface area in constant rate section is studied. the floc density pa and the floc equivalent diameter da are calculated on the basis of experimental data and theoretic analysis
研究了等速段的臨界濃度、臨界顆粒表面積；分析計算了絮團密度_ 、泥沙絮團當量直徑d _ 。 -
Using the optimum calculating method, some important technical parameters could be determined, that is, optimum supporting force, allowable deformation of rock mass, cross section area of u - shape set, pre - tight force and diameter of the bolt as well as torque to provide optimum supporting force
用這一計算方法能求出巖石恆阻支護的重要技術參數，即最優（小）恆阻支護力、圍巖最大允許變形量、恆阻u型鋼支架的截面積、聯接螺栓的預緊力和直徑及最優支護力的擰緊力矩。 -
Because the structure of horomill is not prefect in practice, in the second section design horomill by consulting the structure of roller grinding and applying concurrent engineering, and empolders secondly autocad2000 by using visual basic 6. 0, and sets up parameter gallery of horomill. in the third section, the dynamic model of horomill is developed. the relationship equation between energy consumption and press, and the relationship equation among the diameter of the cylinder, the diameter of roller and the average particle size are established
由於筒輥磨的結構在實踐應用中並不十分完善，本文參考了輥式磨的結構特點，利用并行工程技術設計出變徑離心式輥碾磨機，並且應用visualbasic6 . 0對autocad2000進行了二次開發，建立了筒輥磨的參數化圖庫。 -
Image analytical instrument is employed to study the section pattern of various deniers precursor fibers as well as quantitatively analyze and contrast their section area, perimeter, roundness and diameter
採用圖像分析儀研究了不同纖度原絲的截面形態，並對截面面積、周長、圓度、直徑進行了定量分析、比較。 -
In addition, a new type of phase conjugator using tapered fiber is designed, which combined the higher reflectivity of small core - diameter fiber and higher damage threshold of large core - diameter fiber. the theoretical analysis has also been carried out in section iv. applying it in double - pass system, the maximum sbs reflectivity arrives at 85 % and relative stability arrives at 90 %, which is more than that of common optical fiber phase - conjugator
為了獲得更高的能量反射率和穩定性，我們自行設計了一種新型的錐度光纖，並應用於ld泵浦的雙通放大dpl系統中；實驗表明：應用錐度光纖相位共軛器可以獲得高達85的能量反射率和90的相對穩定度。 -
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。 -
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。 -
3. because traditional coupling system composed with cylinder lens and focus lens has the disadvantages of difficult to encapsulation and modulate, a new practical method brings forward : the output light from laser diode is collimated using a section of optical fiber with the diameter of 600 m instead of cylinder lens, and a sphere ? end lens
3 .針對由柱透鏡和聚焦透鏡組成的組合透鏡耦合系統中存在的封裝和調試困難等問題，提出了:用一段直徑為600 m的裸石英光纖代替柱透鏡，對半導體激光器輸出光束進行準直整形;用球透鏡光纖對準直后的光束進行聚焦，直接實現和光纖耦合，來代替聚焦透鏡和光纖耦合的環節。 -
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。 -
Experiments are conducted in a 5 m long, 60x60 mm cross - section shock tube, liquid drops acted by shock wave undergo deformation, breakup and atomization. based on experiments, the effects of shock velocity and drop diameter on drop breakup time have been discussed
採用ya ? 16高速照相機，詳細研究了液滴在激波作用下變形、剝離、破碎、霧化的全過程，並討論了液滴的破碎模式、激波強度和液滴直徑對液滴破碎時間的影響。 -
By using steady state simulation, the bottleneck of increasing the effic - iency of separation is identified to be the middle sieve tray section with smaller diameter and smaller tray spacing, and the two renovation schemes without any additional invest - ment on equipment are proposed. 4
利用穩態機理模型模擬實際操作過程，找出了限制提高塔的操作負荷以提高操作分離效果的的瓶頸位置，進而提出和比較了在不增加額外設備投資前提下解決這一瓶頸的兩套方案。 -
Diameter difference of cross section
斷面直徑差 -
Analyze how to ensure the smallest limit of core length, and give the formulation of laminated dimension when the given diameter limit is zero. this paper gives the gene handling genetic algorithm and the gene express genetic algorithm, separately, to accomplish the optimization transformer core section. the optimization results show the effect
通過分析鐵心截面最小級片寬下限的選擇依據，並給出控制鐵心給定直徑外限為0時每級疊厚的遞推公式，本文從外部信息流角度和內部信息流角度出發，分別採用基因控制遺傳演算法和基因表達遺傳演算法完成了鐵心截面的優化設計，並取得了很好的效果。 -
The experimental model is a rectangular section of 15. 2 187mm ~ 2, which is composed of two aluminum plates. the angles between the internal netted rib turbulators and the flow direction are 45 ? for the one plate and 60 ? for the other, or both 45 ? for two plates. in the experiment, the re numbers changes from 0. 4 10 ~ 4 1. 5 10 ~ 5, rib width - to - pitch are 0. 25, 0. 3 and 0. 5, rib width - to - height are 0. 25, 0. 3 and 0. 5, the rib height - to - hydraulic diameter ratio is 0. 246
主要研究了在通道進口截面積（即無肋處的截面積） a為15 . 2 187mm ~ 2 、肋高與通道當量直徑之比e / de等於0 . 246 ，實驗雷諾數范圍在0 . 4 10 ~ 4 1 . 5 10 ~ 5之間的情況下，雷諾數re 、肋向角a 、肋寬與肋高之比t / e和肋寬與肋間距之比t / p等參數對通道強化傳熱與流動阻力特性的影響。 -
The suck - wind machine need to intake a lot of wind in the synthesis ammonia section transform furnace, the quantity is at l 00000nm ' / h, so the diameter of the wheel is about 1 meter. the motor driving it need higher power for meeting the startup torque
負壓運行爐的引風機要求吸風量大，一般都在100000nm 』 i以上，因此風機輪毅直徑設計的都較大，大都在1米以上，這樣為了克服風機的大啟動力矩，風機所配置的拖動電機功率也非常大。 -
The calculation result of passed flow rate in pipe section of pipeline network is significantly influenced by the momentum exchange and the local energy losses at junctions for the pipeline network comprised of the pipes of larger diameter and shorter length
摘要對于管徑較大、管段長度較短的管網，結點處的動量交換和局部能量損失顯著影響管網中管段通過流量的計算結果。 -
The project is used which measuring instrument moved along axis and the measured quartz tube rotated and fixed ort a position. according to data of outer diameter and wall thickness of different sections and positions, it can calculate the parameters of section area, ellipticity, wall thickness error, flexibility and so on
系統將激光掃描綜合測量儀、直線與回轉伺服控制系統和計算機有機地結合，採用測量儀軸向移動，而被測石英管在固定位置上轉運而不移動的測量方案，根據測量出多個截面和多個不同位置的外徑和壁厚數據，計算出被測石英管的截面積、橢圓度、偏壁度、彎曲度等其它參數。
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