distributions 中文意思是什麼

distributions 解釋
分銷,分派
  1. In this paper a kind of cardio - cerebral arterial bifurcation vessel hemodynamic characteristics are studied with the boundary element method, and the blood flowing velocity vector distributions have been calculated. in addition, the flow field distribution and the pressure on the particle surface are also calculated, when there is flow - round particle at the place of bifurcation, the move tendency of the particle is judged, the possible reasons of causing the atherosclerosis, thrombus, angioma are analysed

    本文用邊界元方法研究了一類典型心腦動脈分支血管中血液流動的流體動力特性，計算了分支血管血液流動的速度矢量分佈，同時計算了分支附近有多個顆粒狀繞流物時血液的流場分佈，及顆粒物所受壓力狀況，給出了顆粒物的運動趨勢，分析了引起粥樣斑塊病變、血瘤、血栓的可能原因
  2. In the experimental studies on the behaviors of helium in aluminum, ion implantation technique was adopted to introduce helium with different energies, doses and distributions into some specimen of monocrystal, polycrystal, and preferred orientation as to the structure of aluminum. the energies varied in the range of 50ev to 4. 87mev. the corresponding helium peak depths by trim simulation varied in the range of 16 angstrom to 20. 7 microns

    在金屬鋁中氦行為的實驗研究中，首先用離子注入技術在單晶、多晶以及擇優取向的鋁樣品中引入不同能量、劑量和濃度分佈的he原子，能量范圍從50ev 4 . 87mev ， trim模擬的he濃度峰值的深度范圍為16 （
  3. Ii ) energies of the sputtered atoms vary mainly from several to several teens ev, with few atoms " energy relatively high ; the emitting positions of the sputtered atoms are close to the corresponding incident ions ( in the order of angstrom ) ; the sputtered atoms are emitted mainly normally, and few are slantways ; energy and angular distributions of sputtered atoms are influenced by the energies and incident directions of incident ions, but the angular distributions are not influenced by the incident energy very greatly

    Ii ）濺射原子的能量一般集中在幾個到十幾個電子伏特的范圍內，在高能量區域也有所分佈，但數量很少;濺射原子的出射位置就在離子入射位置的附近（埃數量級） ;濺射原子的角度在垂直方向和斜射方向都有所分佈，但以垂直出射為主;濺射原子的能量、角度分佈受到了入射離子能量、角度的影響，但入射離子能量對濺射原子的出射角影響不大。
  4. Analyse of fractal and chaotic characteristics for the thickness - distributions of auriferous - quartz - veins in xiangxi au deposit, hunan, china

    湘西金礦含礦石英脈厚度變化的分形和混沌分析
  5. Based on the distributions of these species the paper puts forward 5 basic characteristics of bailongjang woody plants flora, i. e. 1. diverse species, 2. ancient origin, 3. temperate nature and relations of the tropics, 4. here mixing various woody plants from different districts, 5. 20 endemic genera to china and 25 autochthonal endemic species to bailongjiang

    根據這些種的地理分佈，提出白龍江流域木本植物區系的5個基本特徵： 1種類豐富； 2起源古老； 3溫帶性質； 4南北交匯，東西兼容的過渡特徵； 5特有植物繁多。
  6. So it is initiative and instructive for the future application of the temporal interferometry on the analysis of the vibration. in the study of the dynamic mechanical behavior of the ballistite material, the material ' s creep curves and the creep velocity curves are successfully obtained using tspm, and whole field displacement distributions

    將時間序列散斑干涉計量方法引入材料蠕變特性的研究在國際上尚屬首次，該研究對于將來材料力學性能的研究又提供了一有力的分析工具，並為以後該領域的研究提供了有力的理論和實驗依據。
  7. Using the hulscher model of the formation of sand waves and sandbanks, under the ancient bathymetry, or under the modern bathymetry, the stokes number of the tidal flow and resistance parameter in the radial sandbanks satisfy the conditions for the formation of sandbanks. the research demonstrates that the dynamic flow conditions result in the development of tidal current sandbank. the radial sandbanks and it ' s asymmetrical distributions will still maintain in the future

    應用hulscher沙波及沙脊增長模式，通過對該海域斯托克斯數及底部阻力參數的計算首次發現，南黃海輻射沙脊群海域在概化古地形和現代輻射狀沙脊群水下地形情況下，其斯托克斯數及底部阻力參數均滿足形成潮流沙脊的條件。
  8. Tables for statistical distributions - binomial distribution

    統計分佈數值表二項分佈
  9. The competition among those species like s. tsinyunensis, dryopteris erythrosora and veronicastrum stenostachyum etc., is intense in the communities, which may be one of the reasons why s. tsinyunensis is going to be endangered and with a very restricted distribution. the distribution patterns of the seven populations of s. tsinyunensis are clumped among the eight populations we studied, except population v of random distribution. the spatial pattern of 6 populations of s. tsinyunensis have high consistency with the negative binominal distribution, while another 2 populations, i. e., i and iii are poisson distributions

    6 ）縉雲黃芩各種群空間分佈格局基本呈聚集分佈，其中7個種群的分佈格局類型是聚集分佈，其聚集強度較高，另有一個種群為隨機分佈；其種群的離散分佈擬合結果也嚴格符合一定的數學模式，其中負二項分佈、 poisson分佈分別是該物種種群空間分佈的理論分佈模式，其中6個種群擬合出的結果是負二項分佈，種群i和種群m擬合出的結果是poisson分佈。
  10. Objective to explore the natural resources, original places, distributions and uses in folk - medicine of caulis clematidis armandii. ( chuanmutong, a universally used traditional chinese medicine )

    摘要目的考察川木通在四川的資源概況、產地、分佈、民間藥用等情況。
  11. To study special markov processes with infinitely divisible limit distributions, the characteristic function was used

    研究極限分佈具有無窮可分性的馬氏過程。
  12. Features and spatial distributions of circumpolar deep water in the southern india

    南印度洋繞極深層水的性質和空間分佈以及南極繞極流的作用
  13. It was shown from the result of analysis and comparison that the evaluation efficiency for the non - randomized cloud seeding operations could be improved by using appropriate physical covariate as control factor and increasing the correlativity between rainfall distributions in the control area and target area

    比較分析的結果表明，只要不斷提高對比區和影響區的相關性和引入新的更有效的協變量，就可能提高非隨機化作業的效果評估效率，從而更好的檢驗人工增雨作業的效果。
  14. In the end, cluster - analysis - based floating control historical regression method with uniform precipitation and atmospheric precipitable water as metoorological covariates could more validly evaluate efficiency of cloud seeding operations and significant level of ca - fcm method was higher than the other methods, because it adopted cluster analysis which highly improved the correlativity between rainfall distributions in the control area and target area, and used grid interpolation which enhanced exactness of calculating precipitation rainfall, and chose atmospheric precipitable water as the covariant which increased the inferential accuracy of natural rainfall on the cloud seeding operational area

    最後，得到以降水量和整層大氣可降水量為協變量的ca - fcm方法，由於採用聚類分析（ ca ）方法，提高了對比區和影響區相關性；採用網格插值技術提高了雨量的計算準確度；引入了不受催化影響的物理協變量（整層大氣可降水量） ，提高了作業區自然降水量估計值的準確性；所以評估效果最好，顯著水平高於0 . 05 。
  15. Techniques, and their physico - chemical parameters such as specific areas, particle size distributions and diffusion coefficients are measured by the bet method, laser scattering technique and galvanostatic intermittent titration technique ( gitt ), respectively. sem photographs show that these samples are made up of the irregular porous granules, which are conglobated by many small spherical crystals

    溫度助p 』 c賊品中有明顯的尖晶石相雜質，充放電曲線表現出3v和4vmglz臺，而焙燒溫度在sic 』 c以下的樣品充放電曲mn有一個3v平臺，充放電循環過程中沒出現明顯的3v平臺向4v平臺轉化的現象，表明該樣品在循環過程中結構是愧箍淀的。
  16. The authors have proved that the two types of definitions are congruous by using limit theory, while discussing the correlation among the subclasses of heavy - tailed distributions

    利用分析中的極限理論等方法，證明了重尾分佈的這兩種定義是一致的，並給出了重尾分佈子族間的相互關系。
  17. This paper discusses whether the definitions of heavy - tailed distributions produced by slow - varying function and the definitions of heavy - tailed distributions produced by exponential echelon matrix are congruous

    摘要討論了由慢變化函數形式給出的重尾分佈定義，與由指數階矩形式給出的重尾分佈定義是否一致。
  18. On the number and distributions of limit cycles in a cubic system

    一類三次系統極限環的個數與分佈
  19. The additional flow is formed by the device of dentoid baffle, and the application of the device of dentoid baffle cooperated with a stilling basin has been investigated by systematic model tests. based on the research results, the hydraulic problems such as the characteristics of hydrodynamic pressure and cavitation on the head of the denotid baffle, the properties of flow under the condition that the device of denotid baffle is used with a stilling basin, the hydraulic computation about a stilling basin, the estimation of energy dissipation and its various affection factors, the mechanism and effect of energy dissipation, and distributions of velocity and pressure and aerating concentration, etc, have been analyzed ; the method and step of hydraulic design of device of denotid baffle by which the additional flow is produced has also been proposed

    文中利用齒墩設施實現附加射流，對齒墩設施與消力池聯合應用進行了大量的和系統的模型試驗，分析研究了中低佛勞德數條件下，齒墩墩頭的動水壓強及空化特性，齒墩設施與消力池聯合應用時的流態特性，消力池的水力計算，消能量的估算及其各種影響因素，消能機理和效果，消力池內的流速、壓強特性，摻氣濃度分佈等水力學問題，並提出了實現附加射流齒墩設施的水力設計方法和步驟。
  20. Probability distributions are classified as either discrete or continuous.

    概率分佈為離散型和連續型兩種。
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