粒度變化 的英文怎麼說

中文拼音 [lìdùbiànhuà]
粒度變化 英文
change in particle size
  • 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. Firstly, evidence from depositional pattern suggests that the hsl has experienced an expansion - contraction circle since the late glacial epoch. the expansion and movement of the hsl or desert in early stage were clearly marked by the presence of paleo - aeoline sands. the occurrence of paleosoal characterized the stabilization and contraction of the hsl and also indicated the activity of pedogenesis on the paleo - aeilian sands

    通過系列氣候代用指標的分析，首次發現該地區粒度、磁化率指標值在兩個大的峰值之間有多個小的峰谷出現，表明了在大的氣候變化階段次一級的暖濕?乾冷氣候波動，值的進一步做年齡的小尺度高解析度研究。
  2. Abstract : the effect of correction of self - consistent potential on electronic structure in simple cubic nanocrystal particles is calculated by means of the green ' s function method in the tight - binding approximation, taking only the nearest neighbor matrix elements into account. the numerical results show that the electronic energy spectrum is shifted, the chemical potential is not equal to the atomic energy level, the electronic density at each lattice point is changed, and the variation of electronic density at surface lattice point is the largest

    文摘:在緊束縛近似下，只計及最近鄰的矩陣元，採用格林函數計算了自洽勢修正對簡立方納米晶體顆粒的電子結構的影響，發現電子能譜發生了移動，化學勢不等於格點原子能級，各格點的電子密度也發生了變化，其中以表面格點的電子密度變化最大。
  3. The lognormal distribution is widely used in geology to characterize sediment size variations and geochemical element concentrations.

    在地質學中，對數正態分佈已被廣泛用以表示沉積粒度變化特徵和地球化學元素濃集情況。
  4. The hydraulic gradients of settling slurry flow transported in three kinds of moving states, i. e. suspension, saltation, or partially suspension were investigated, based on analyzing the changes of solid particles and water in momentum, velocity and their mass related to momentum exchanging over the acceleration period of the solid particles

    從固體顆粒加速期間清水與固體顆粒的速度變化、動量傳遞、相關質量等基本問題分析入手，研究了沉降性漿體在水平管道內流動時其固體顆粒在3種流動狀態下的水力坡度，提出了沉降性漿體在水平管道內流動的機理模型，進而用該模型對一些輸送條件下的沉降性漿體的水力坡度進行了計算。
  5. In order to remedy this shortage, it was put forward that the frame of terrigenous elastic rocks should be expressed as the collaring rectangle instead of rectangle

    對于陸源碎屑巖來說，這樣既不能表示出其粒度變化情況，又不能反映出它形成時的沉積動力學特徵。
  6. It is shown from results that increasing carburizing time further in the normal technology can not obviously deep the carburizing layer, but can cause nonmartensite microstructure at the bottom of the gear and coarse grain across the gear, these will heavily decrease the fatigue life of the gear

    結果表明：在正常滲碳淬火工藝基礎上再延長滲碳淬火1小時，齒輪滲碳層深度變化不大，但其齒根局部表面處有非馬組織，且晶粒尺寸易產生異常長大現象，從而致使臺架疲勞壽命明顯下降。
  7. The process parameters of preparing nanosized titanium dioxide powders were systematically studied by electrochemical synthesis experiments at room temperature. the rutile phase and anatase phase powders were obtained in the sizes of 9. 7nm and 9. 2nm respectively, and the complete crystal powders were formed after calcined at 400 for two hours. in the process of experiments it was observed that the low current density resulted in rutile phase powders, while the addition of little amount of ions of sulfate promoted the formation of anatase phase powders

    在本實驗條件下，小的電流密度有利於金紅石相的生成，而少量硫酸根離子的引入對生成銳鈦礦相粉體有利，調整電流密度大小和引入硫酸根離子的量，可以得金紅石型和銳鈦礦型的混合混體；研究無定型粉體，銳鈦礦相粉體以及金紅石型粉體隨溫度的粒徑變化情況時發現，粉體在400以前晶粒長大相對緩慢， 400以後晶粒粗化現象嚴重。
  8. A monte carlo algorithm was presented to model the relation between the scattering phenomenon, depolarization changes and sea water depth, it is discovered that the radius of scattering point and the degree of depolarization increase with increasing of the sea water depth. at last, a optical engineering software ( lighttools ) is introduced to simulate optical scattering in the deep sea water, and studys the corelation between scattering and relative refractive index, particle density and particle size in the sea water. the experiment results show that the intensity of scattering will increase evidently with the increasing of particle size, particle density and relative refractive index. the methods and results in the article provide the basic theory and experiment validation for improving performance of communication, detection and imaging under sea water

    本文以球形粒子的mie散射理論、 stokes矢量法以及mueller矩陣來研究海水的散射特性和散射中的退偏振度變化;通過montecarlo方法模擬藍綠激光在海水傳輸過程中的散射現象以及散射中的退偏度變化與海水深度的關系，發現隨著海水深度的增加，散射后的光斑半徑、退偏振度將逐漸增大。最後通過光學工程軟體（ lighttools ）對海水中的散射進行模擬實驗，研究散射與海水中粒子密度、粒子大小和相對折射率的關系。實驗結果表明，隨著粒子半徑、粒子密度和相對折射率的增加，散射的強度將顯著增加。
  9. Lagrange wave speed in the release process was computed from the measurement, and result shows a good agreement with the data in literature. furthermore from the lagrange wave speed, the stress - strain relationship in the release process was calculated using the impedance match solution. comparison of the stress - strain with the fluid elastic - plastic model indicates that ofhc copper exhibits a clear work - harden behavior during the release

    根據界面粒子速度剖面，計算得到了卸載過程中lagrange聲速隨界面粒子速度變化的關系，所得結果與文獻給出的數據符合很好；其次，利用阻抗匹配近似，計算分析了無氧銅卸載過程的應力-應變關系，並與流體彈塑性模型進行了比較，結果表明：無氧銅的卸載過程存在明顯的應變硬化效應。
  10. This paper gives a brief introduction of the formation mechanism of sma and the handing property of pavement from the aspects of theory and research. at the same time, this paper also studies the effect of aggregate size on road - related performance in some different grads. except, it also having inspected to use the sbs, the pe and the combination material of sbs and pe to analyze the influence to the function of material road

    瀝青瑪蹄脂碎石混合料（ sma ）以其溫度穩定性好、抗滑性能優良、低噪音、使用耐久等優點在公路建設中越來越受到重視，本文對sma組成特點，強度形成機理與路面使用性能從理論和試驗研究角度進行論述，並針對不同級配的瀝青瑪蹄脂碎石混合料，分析了粗、細集料的粒徑變化對其路用性能的影響，同時也考察了用sbs 、 pe 、 sbs和pe復合改性后的瀝青結合料對混合料的路用性能影響。
  11. After 20 days at 450 or 1 day at 500, the u3si2 particles cracked and fragmented, there were a lot of cracks in al - matrix and reacted areas, there were also a lot of holes in the meat. the meat lost its continuity and perfection, and departed from clad. above 450 the volume fraction of the al - matrix and the u3si2 decreased and produced u ( al, si ) 3 in the meat, u3si2 particles invaded to clad

    在450熱循環20天後、 500熱循環1天後，燃料板的厚度變化一般0 . 04mm ，燃料板的翹曲現象嚴重； u _ 3si _ 2顆粒開裂及破碎，基體中產生大量的裂縫，反應層也存在大量的裂紋及孔洞，芯體已失去連續性、完整性，並且與包殼脫開。
  12. The variation of coarseness and fineness of the component particles in baijiaziu profile and mafangtan profile is caused by river impetus of weihe river, including runoff volume and velocity of flow, which is closely related with climatic factors in guanzhong basin, such as precipitation, temperature and rainfall

    白家嘴與馬坊灘河流沉積物剖面粒度變化與渭河水動力變化直接相關，而渭河水動力條件又與渭河流域區域氣候變化有關。因此，粒度在剖面上的變化實質上是氣候波動的結果，利用其變化可重建河流沉積物形成以來的水文、氣候環境的演化歷史。
  13. Grain contact models suggest that dry k / ratio remains a constant with varying porosity, differential pressure and mineral properties and vary with roughness of grain contact

    顆粒含量模型說明，乾燥k /比不受孔隙度、差壓和礦物特性的的影響，但是要隨顆粒含量的粗糙度變化。
  14. At the first stage of ball milling, the granularity of powders increases with prolonging the time. but if ball milling continues, the granularity will minish. when minishing to a certain extent, the granularity of powders don " t change greatly along with prolonging the time of ball milling

    在初始階段隨球磨時間的增加，粉末粒度變大，繼續球磨，粉末粒度變小，細化到一定程度后粉末粒度不再隨球磨時間的延長顯著變化。
  15. Abstract : in this paper conditional experiments of cobalt oxalate precipitatio n process are made. the influence of the process on cobalt powder size is analyze d and discussed. regularity of cobalt powder size change is summarized

    文摘:對草酸鈷沉澱的工藝條件進行了試驗，並分別就該工藝對鈷粉粒度的影響進行了分析和討論，總結出鈷粉粒度變化的規律。
  16. Rhythmicility or periodicity of the depositional strata is materialized by the transformations of lithological characters in strata ordinally, and it is incarnated by the transformations of ingredient, granularity, color, intensity of the depositional compensation, intensity of oxidation - deoxidation, and the character of biome

    沉積巖層的韻律性或旋迴性特徵由巖層的巖石學性質在縱向上的（隨時間的）有規律變化所決定，這些變化主要由以下方面所體現，包括：組分變化、粒度變化、顏色變化、沉積補償強度變化、氧化還原強度變化，以及化石群性質變化等。
  17. It can be observed that the sediments of the holocene loess is continuous and thus it reflects the environmental change and human activities since the holocene. meanwhile, laoguantai profile is a perfect one because it lies in the periphery of the laoguantai cultural relics. on the basis of outdoor observation and indoor experimental analysis, the author selects proxy substitute indexes, such as grain - size, magnetic susceptibility, microelements, cacos and ph value, etc. moreover, the thesis also calculates and investigates the remains of human activities kept in the profile

    為了盡可能準確地獲取該地區全新世以來的環境演變和人地關系演進的真實環境背景，本次研究在野外詳細觀測和大量室內實驗分析的基礎上，審慎地選取了多項用於再現古氣候環境的代用指標進行了分析，這些指標包括粒度、磁化率、微量化學元素（包括fe 、 rb 、 co 、 li 、 cr ； sr 、 ba 、 cd 、 sb ； bi 、 mn ； cu 、 zn 、 pb 、 ni ） 、碳酸鈣和土壤ph值等。
  18. Secondly, the effect of transverse deforming on the property of the wedge pressing was studied. the results showed that : the wedge pressing stock with the transverse deforming amount of 10 % acquired the best performance. the highest density got the biggest rate of slope while with the amount of 30 % the curve was more some special structure and performance as following : the large porosities was crushed into small or linear ones with the high - direction deformation amount of 20 % ; as the increasing of the high - direction deforming, the particles got a further deforming, the porosities got a further crushing, the small porosities were mergered by the large ones and the former then disappeared ; when the amound reached 60 %, the quantity of the porosities would obviously decrease which made the materials compact, the microstructure more uniform and the density and hardness curves more horizontal, the relative desity could reach 99. 7 %, the tensile strength b of the as - compacted samples reached 408mpa with the yield strength s teached 289mpa and the elongation percentage reached 13. 6 %. in addition, the microstructure of the wedge pressing stock under the pressing temperectureof 450 was uniform, the porosities and the boundries of the grains basically disappeared and the conjunction between particles was great

    採用雙向楔形壓制，大尺寸噴射沉積5a06鋁合金楔壓坯的組織和性能變化具有如下特點:當高向變形量為20 %時，大的孔洞變形破碎為小的孔洞，或呈線狀孔;隨著高向變形量的增加，顆粒進一步變形，孔洞進一步破碎，大孔「吞併」小孔，小孔塌陷並逐步消失;當高向變形量達到60 %時，孔洞量大為減少，材料基本緻密，組織趨于均勻，楔壓坯料的密度、硬度變化曲線接近水平線，坯料的相對密度達99 . 7 % ，抗拉強度_ b = 408mpa ，屈服強度_ （ 0 . 2 ） = 289mpa ，延伸率= 13 . 6 % ;對比其它的壓制溫度，在450楔形壓制的坯料組織均勻，孔洞及顆粒邊界基本消失，顆粒之間冶金結合良好。
  19. First research on physics and combustion characteristic of micronized coal is processed in this paper. the results of the change tendency of pulverized coal character with particle diameter are got from particle diameter determining test, hole structure analysis test and tg analysis test, which provide theory element for nox reduction research with micronized coal reburning

    本文首先對超細煤粉的物理、燃燒特性進行了試驗研究，通過煤粉細度的測定、孔隙結構的分析以及熱重分析等試驗，得到了煤粉粒徑變化后煤粉特性的變化趨勢，為超細煤粉再燃降低nox排放的試驗研究奠定理論基礎。
  20. 3. for encapsulated pcms with less than 10 m in their average diameter, their temperature and heat of phase transition seldom change as their average diameter decreasing ; however, their crystallization peaks vary dramatically and the super - cooling becomes worse

    3 、對于平均粒徑小於10 m的相變材料膠囊，膠囊的相變溫度以及相變熱基本不隨粒徑變化，而結晶峰變化較大，其過冷現象隨著粒徑的減小而加劇。
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