粒度中值 的英文怎麼說

中文拼音 [lìdùzhōngzhí]
粒度中值 英文
median grain diameter
  • 粒 : Ⅰ名 （小圓珠形或小碎塊形物） small particles; grain; granule; pellet Ⅱ量詞（用於粒狀物）
  • 度 : 度動詞[書面語] （推測; 估計） surmise; estimate
  1. The results indicate that : 1. the main physical and chemical characteristics vary regularly : with rising of the altitude, there is a transition from silt > sand > clay to sand > silt > clay in the mechanical composition ; the argic horizon emerges below the altitude of 1600 meters ; the content of organic matter is enrichment, the content of organic carbon of epipedon is higher than 20 g / kg, while the content of organic carbon increases with increasing of altitude, and in the altitude of 3500 - 3700meters, the soils under the meadow have the maximum content organic carbon ; the soils appear acid - slightly acid reaction, the ph decreases appreciably and acid strengthen with increasing of altitude ; the soils higher than the altitude of 2500 meters are base unsaturated, indicating the soil leaching is strong, the ph and bs are distinct plus correlated ; the contents of sio2, al2o3, and fe2o3 of the soil body and clay are all relatively stabilization ; in the soil body, the content of sio2 is much high and cao is very little, the total contents of sio2, a12o3 and fe2o3 occupy 92 % of the mineral parts, the sequence of mineral elements is : sio2 > al2o3 > fe2o3 > k2o > mgo > cao > tio2 > mno

    研究結果表明： 1太白山南坡土壤的主要理化性質隨海拔高度的上升呈有規律的變化：隨海拔高度上升，機械組成由粉粒砂粒粘粒逐漸過渡到砂粒粉粒粘粒，海拔1600m以下出現粘化層；土壤有機質豐富，表層有機碳含量一般在20g kg以上，有機碳含量隨海拔高度升高而相應增加，海拔3500 3700m的灌叢草甸植被下有機碳含量最高；土壤呈酸性或微酸性，並隨海拔上升， ph值略微降低，酸性增強，海拔2700m以上的土壤多呈鹽基不飽和狀態，表明土壤淋溶作用較強， ph值和鹽基飽和度呈極顯著正相關；土體與粘粒中的sio _ 2 、 al _ 2o _ 3 、 fe _ 2o _ 3含量相對比較穩定，土體中sio _ 2含量較高， cao含量較少， sio _ 2 、 al _ 2o _ 3和fe _ 2o _ 3含量之和約占土壤礦質部分的92 ，礦質元素含量的順序依次為： sio _ 2 al _ 2o _ 3 fe _ 2o _ 3 k _ 2o mgo cao tio _ 2 mno 。
  2. 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。
  3. At the surface of the pollen grains there are three types of aperturates, including three porates type, three colpates type and three porate - colpates type ; and four types of sculpture, namely, reticulate, striate, striate - reticulate and verrucate. the upper epidermal cells of the leaves of 12 species plants are detected with hpias - 1000 image analytic system through the treatment of binarization, and the experimental methods are proved stable. the results indicated that the waviness of the anticlinal walls ( sfc ) and the ratio of the feret ' s diameter ( slf ) of the epidermal cells of the middle lamina in the third node of leaves starting from the lowerest part of the stem have a relative constant range and could distinguish from each other. oieanolic acid, l, 5, 8 - trihydroxy - 3 - methoxyxanthone and swertiamarin are separately detected on the tlc, and the different chromatogram of various plants can be considered as characters of identification. the contents of oleanolic acid in 12 species of plants are determinated by hplc, but among the different plants and botanical organs their contents are different, and the highest content in flowers

    本文對川鄂產獐牙菜屬藥用植物資源進行了野外調查、標本採集和鑒定，對12種乾燥藥材的性狀進行了描述，提供了可以鑒別的特徵。通過掃描電子顯微鏡觀察的12種本屬藥用植物的花粉粒均為單粒花粉，萌發孔有3孔型， 3溝型和3孔溝型三種類型；表面紋飾包括網狀紋，條狀?網狀紋，條狀紋和瘤狀紋四種類型。用hpias ? 1000高清晰度彩色病理圖文分析系統對葉片上表皮細胞作圖像分析，並進行方法學研究，結果表明，同種植物莖上第3節葉片中段主脈和第1側脈之間葉上表皮細胞垂周壁彎曲程度sfc值和細胞縱、橫向直徑的比值slf值，種間有顯著差異，每種都有相對恆定范圍值。
  4. The paper divided turbidite fan in deep water from long source into braided channel microfacies, inter - braided channel microfacies, medium fan over - belt microfacies, and external fan subfacies, and divided slump turbidite which related with delta into medium fan subfacies and external fan subfacies, and summed up 15 kinds of marking of subfacies and microfacies classification. at the same time, it formed a series of effective technology of analyzing turbidite source at the base of studying region geological which combined with analyzing the content change of terrigenous debris, with the found of logging facies, and with the ancient terrestrial magnetism test and other technology means under the guidance of three - dimensional model of turbidite which has been founded already and the flat surface feature of microfacies

    將遠源深水濁積扇劃分為辮狀水道微相、辮狀水道間微相、中扇過渡帶微相和外扇亞相；將與三角洲有關的滑塌濁積扇劃分為中扇和外扇兩個亞相，並總結了濁積巖沉積劃分各種亞相、微相類型的十四種標志，分別為:巖石類型、層理類型、砂巖單層厚度、粒度結構特徵（粒度中值、分選性、概率曲線） 、生物化石、儲層物性（孔隙度、滲透率） 、泥巖隔層特徵（泥巖單層厚度、層數、顏色） 、鮑瑪層序組合和自然電位曲線特徵。
  5. On the basis of theory analysis, the average transmitted light intensity ( correspond to dc value ) was determined as characteristic parameter of raw water using photoelectric method for monitoring the fluctuation of transmitted light and photometric dispersion analyzer ( pda ). the dc value was closely related to both particle concentration and surface area of sand clay simultaneously. the experimental results shows that there is an exponential function relation between dc and surface area of sand clay in unit volume water ( sp ) : dc = asbp in which a and b are empirical coefficients. then the formula of macromolecule flocculant dosage is found to be d = f ( dc ) = e ( dc ) f in which e and / are empirical coefficients and the average correlation coefficient equal to 0. 981. so the model of automatical control system of water treatment plant was established using the formula

    應用透光率脈動檢測技術和光散射顆粒粒度分析儀（ pda ） ，通過理論分析，將pda的輸出信號之一? ?平均透光強度（對應于dc值）作為原水的特性表徵參數， dc值可以同時反映顆粒濃度和比表面積因素的影響，試驗結果證明， dc值與單位體積水中泥沙顆粒總表面積s _ p之間具有很好的冪函數關系： dc = cs _ p ~ d ，式中c 、 d為經驗系數，進而得到了以dc值為參數的高分子絮凝劑投藥量公式： d = f （ dc ） = e （ dc ） ~ f ，式中： e 、 f為經驗系數，平均相關系數達0 . 981 ，利用所建立的公式，建立了前饋? ?后饋聯合控制的在線自動投藥模型。
  6. In this paper, high heat penetration into a moving particulate bed is described mathematically with a comprehensive heat and mass transfer model. the distribution of gas velocity and pressure, the temperature field of gas and solid in the moving particulate bed are examined for different conditions. the results show that thermal penetration into the moving packed - bed particles by fluid flow in porous media is high only in the position near the gas entrance. the thermal penetration thickness tends to increase with the fluid flow velocity and decrease with the particle moving velocity. in the region of thermal penetration, the porosity of solid bed has significant effect on gas field and pressure loss. it is feasible to reduce the gas pressure loss by a larger width / height packed bed in design and operation. the correspondence between thermal infection depth and particle bed height would be helpful to keep high oapacity of reactor and reduce the cost of operation

    針對移動顆粒床中物料層內的高溫氣體滲流傳熱現象，考慮滲流與傳熱的相互作用，採用局部非熱平衡假設建立了多孔介質滲流傳熱物理數學模型並進行了數值計算.研究了不同情況下床內填充多孔介質中的流速、氣固溫度和床層壓力損失.計算結果表明，高溫熱氣對移動床顆粒料層的熱滲透主要發生在滲流入口端區域，增大入口滲流速度以及減小床層物料下移速度將導致物料溫度沿床高慢速下降，熱滲透深度擴大，熱滲透作用區域內的物料溫度水平提高.在熱滲透作用區域，孔隙率對流場和壓力損失有很大的影響.研究結果對于移動顆粒床反應器的設計與運行具有一定的參考作用
  7. Unfortunately, in a websphere application server environment, these operating system protections are of limited value because they are based on process identity, which is a very coarse - grained concept when you consider application servers servicing requests from thousands of users at once

    遺憾的是，在websphere application server環境中，這些操作系統保護的價值比較有限，因為它們是基於流程識別的，當考慮到應用服務器同時接受數千用戶發出的請求時，這是一個非常粗粒度的概念。
  8. The x - ray diffraction, scanning electronic microscope and the squid were used to characterize the properties of the mgb2 core in mgb2 / fe tapes and wires. the effect of the proportion of mg, b and sic as well as the sintering parameters on the phase formation, microstructure and the critical current densities of mgb2 / fe tapes and wires was discussed in details. the results showed that the high purity of mgb2 core could be synthesized by both the traditional vacuum sintering and the sparking plasma sintering and the vacuum sintering environment restrained the oxidation of mg effectively

    相對于傳統真空燒結， sps燒結方式成相速度快、樣品晶粒細小均勻、 mgb2超導芯緻密性好、晶間連接優良，因而sps燒結樣品的臨界電流密度明顯高於傳統真空燒結樣品，其中未摻雜的帶材樣品經過sps800 ， 15分鐘燒結后，自場下的臨界電流密度jc值在10k時達到8 . 64 105a / cm2 ，而且隨著測量溫度和外加磁場的增加， sps燒結樣品的臨界電流密度下降率比傳統真空燒結樣品緩慢，在20k ，自場時為5 . 97 105a / cm2 ， 20k ， 3t時，臨界電流密度值仍大於104a / cm2 。
  9. In this paper, concentrated sulfuric acid and titanium dioxide are used to prepare the tios04 solution that test later required under long time heat. the influences of reaction time and reaction temperature to yield of tioso4 are discussed. in the experiment of preparing tio2 powder, reaction temperature, ph values, material ratio, operation way, velocity of feed, calcining heat and time are researched by the principle of nucleation and growth in thermodynamics and kinetics

    在制備tio _ 2粉體實驗中，根據成核生長的熱力學和動力學原理，深入分析了沉澱反應時環境的溫度、 ph值、反應物配比、操作方式、加料速度等因素對ti （ oh ） _ 4粒度的影響，以及焙燒溫度和保溫時間等因素對制得的納米tio _ 2粉體性能的影響，得出了制備銳鈦型納米tio _ 2粉體的優化工藝條件。
  10. The characteristic parameters of effective debris in a ferrograph have been calculated in the present thesis, like area, perimeter, aspect ratio and granularity, in which some methods have been adopted such as smoothing, filtering and thresholding and so on, according to tribological theories and computer technologies and digital image preprocessing

    本論文基於摩擦學原理和計算機技術，通過對鐵譜片進行數字化圖像預處理，採用對譜片圖像的平滑、濾波以及閾值二值分割等方法，計算出譜片中特徵磨粒的一些特徵參量，如面積、周長、粒度以及縱橫比等。
  11. During the preparation process of the solid solution, a series of effect conditions were discussed such as ph value, si / h2o, the content of ligant, the surface active agent, the aging temperature, the drying means, the drier gel calcine and their effects on the gel quality, the process of sol - gel, the granular of powder and the density of the pellets, from which the best reaction condition was found

    在制備過程中系統地研究了各種反應條件如ph值、 sal ； o 、絡合劑的添加量、老化溫度、乾燥方式、干凝膠的鍛燒方式等對溶膠「的質量、溶膠凝膠過程、粉體粒度及燒結體密度等的影響，確定了最佳反應條件：三、以li 。石i 。 。
  12. The specific methods : 1. to ascertain five control indications including suspended solid content, grain diameter median, oil content, iron bacteria and saprophytic bacteria by carrying out the experiment of core flow ; 2. to ascertain indications of sulfate reducing bacteria and average corrosion rate by carrying out the experiment of revolving corroded test pieces ; 3. to ascertain indications of average scaling rate and total mineralization degree by carrying out the experiment of scaling prediction and sensibility

    具體的做法是：採用巖心流動試驗確定懸浮固體含量、顆粒直徑中值、含油量、鐵細菌和腐生菌五項控制指標；採用旋轉腐蝕掛片實驗確定硫酸鹽還原菌和平均腐蝕率指標；採用結垢預測和敏感性實驗確定平均結垢率和總礦化度指標。
  13. 2. the curve of median diameter well showed the grain - size characteristics of the area, which is negatively correspond with the curve of the susceptibility. the median diameter can be regarded as the effectively alternating indication of the environments in the paper

    2 、中值粒徑曲線很好地反映了本地區的粒度特徵，並與磁化率曲線有很好的負向對應關系，所以本文把中值粒徑作為環境的有效替代指標。
  14. There were significant correlation between md and abundance of nematode ( p < 0. 05 ) and weak negative correlation among water depth and numbers of meiofauna, nematode and copepods ( p > 0. 05 ). biomass spectra, the biomass distribution over a sequence of the body size intervals, provide dynamic information about the relationships among components in ecosystem

    小型底棲動物、海洋線蟲和橈足類的豐度和生物量與環境因子進行pearson相關性分析，結果顯示海洋線蟲的豐度與沉積物的中值粒徑相關性顯著（ p 0 . 05 ） 。
  15. By the analysis of coating ratio, oxidation ratio, micrograph and particle size of composite particle, it was found out that factors such as ph value, coating temperature, concentration of premonitory matter solution mainly affect the coating layer forming

    通過包覆率、氧化失重率、形貌觀察、粒度和比表面積等分析發現，非均勻成核過程中溶液ph值、包覆溫度、覆層前驅物濃度等這幾個因素對石墨表面覆層形成有著重要影響。
  16. In contrast with them, those below the above - cited eigenvalue, i. e., 5, 16 and 25, which have relatively narrow flounce range and low sensitivity, are called " inert eigenvalues ". 4

    氣候變遷響應的主體之一，那麼粒度特徵值q75 、 s84 、巾95就是這一主體中所含的諸因子中響應水文、氣候變遷的最為活躍的個體。
  17. Defining a many - to - many relationship and many - to - many relationship properties defining dimension granularity within a measure group

    定義度量值組中的維度粒度
  18. The error of shock sensitivity is within 0. 05mm, which is more precise than those reported on documentation at home and abroad. in addition, the different parameters in ignition and growth model are adjusted in order to qualitatively examine the influence on shock initiation behavior made by the parameters

    根據國內外對熱點起爆的研究，探討對點火增長模型的改進及其在ls - dyna程序中的應用，為進一步在數值模擬中研究不同炸藥粒度對沖擊波感度的影響奠定基礎。
  19. We successfully apply the two - fluid model ( tem ) and kinetic theory of granular flow studying the two dimensional dense gas - solid flow characteristics in the large scale circulating fluidized beds and the cold experimental system with piv. the results of simulation are in accord with others " simulation and experimental results. in the end, we make the three dimensional simulation for the cold cfb riser, which is closer to the factual operation and this experimental results

    在對高濃度氣固兩相流的研究中，根據fluent軟體現有的條件和解決工程實際問題的需要，採用單氣固相雙流體歐拉模型，採用模擬紊流固粒流中普遍接受的方法「顆粒流的運動理論（ kinetictheoryofgranularflow ） 」 ，對大尺度循環流化床進行了二維數值模擬，與他人數值模擬結果和實驗結果進行了對比，檢驗模型的準確性。
  20. This frame can be the foundation of new development in these fields, realizing the reuse of the frame design in large granularity ; 3. by analyzing and stat icing the wis, explicitly narrate the three common components, which have been used most widely, most effectively, and most worthy in this system

    該框架可以作為領域內新系統的開發基礎，在一定程度上實現大粒度的框架設計復用； 3通過對web系統的分析統計，對系統中使用范圍最廣、使用頻率最高，使用價值最大的三類公共構件進行了詳細的說明。
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