無序樹 的英文怎麼說

中文拼音 [wúxùshù]
無序樹 英文
unordered tree
  • 無 : 無Ⅰ動詞（沒有） not have; there is not; be without Ⅱ名詞1 （沒有） nothing; nil 2 （姓氏） a surn...
  • 樹 : Ⅰ名詞1 （木本植物的通稱） tree 2 （姓氏） a surname Ⅱ動詞1 （種植; 栽培） plant; cultivate 2 （樹...
  1. Previous researchers have always determined the sp atial distribution patterns ( sdp ) of castanopsis kawakamii with a sample - dis tance method. however, the distribution patterns may be affected by the quadrat si ze and, in the course of analysis, the density differences among the cluster plots are not considered ; therefore, differences of cluster plot size and the dispersi on degree among individuals of cluster plots can not be known. authers of this pa per have determined the spatial distribution patterns of castanopsis kawakamii population in different habitats by means of non - quadrat distance method and a nalysed the pattern intensity and grain of the sdp. the pattern intensity is defi ned with the relative density differences and the pattern grain can embody the d ispersion degree of the individuals in the plots, and the dispersion degree among the plots. the determined results are as follows. the intensities of the species range in order from strong to week : litsea mollifolia p. kawakamii i. purpure a r. cochinchinensis c. kawakamii c. carlessii d. oldphamii s. superba. the gra ins of the species queue in order from coarse to close : s. superba = litsea mollif olia r. cohinchinensis c. kawakamii = i. purpurea c. carlessii p. racemosam d. oldp hamii. these determined results tally basiclly with the results authers of this paper have got in determining the same plots by means of aggregate index access ing method. in view of this, it is held that the sdp of c. kawakamii is closely related to the habitats and biological features

    前人都是採用樣方方法對格氏栲種群數量的空間格局進行測定，而格局分佈有可能受樣方大小的影響，且分析過程中沒有涉及聚塊間密度差的問題，因而無法掌握種群的聚塊大小差別及聚塊內個體間的離散程度.本研究採用無樣方距離法，測定不同生境的格氏栲種群空間格局，分析格氏栲種群格局的強度和紋理.強度以聚塊和間隙的密度差來定義，紋理則是體現聚塊內個體間的離散程度與諸聚塊間的分離程度.測定結果表明，格氏栲種群格局強度從高到低排列次序為：木姜子蚊母樹冬青茜草樹格氏栲米櫧虎皮楠木荷；格局紋理從粗到細的順序是：木荷=木姜子茜草樹格氏栲=冬青米櫧蚊母樹虎皮楠.這一測定結果與作者採用聚集度指標測定相同樣地格氏栲種群空間格局的結果基本相符.因此，格氏栲空間格局類型及分佈與格氏栲生物學特性及生境的關系密切
  2. Data and knowledge engineering, 2002, 40 : 121 - 154. 3 adelberg b. nodose : a tool for semi - automatically extracting structured and semistructured data from text documents. in proc

    為解決現有抽取演算法要求全局唯一定位器，以及不能識別含有可選無序或噪聲成分的對象等問題，本文提出了一種稱為l -樹匹配的通用抽取演算法。
  3. Stereoscan photographs showed that both the inner and outer coating membranes of sapcus were formed by different size and shape micro particles of coating materials, which were closely stacked at random

    高吸水性樹脂包膜尿素的內外膜均是由大小不一形狀不規則的包膜材料微粒無序緊密堆積，並由膠粘劑填充空隙膠聯而成，包膜疊層間和疊層內有微小孔隙，它們是尿素溶出的通道。
  4. The air absorbed by the fans is separated in and equably flows in the interior and outer canister, from to the heater and interior canister, the air is efficiently heat - treated, then the hot air influxes to and is balanced in because of the mixing by the heater, the hot airs temperature in has only little change, then it is separated completely from to ensure the balance - dryness of the colophony

    由鼓風機吸入的空氣在處被分散，于內筒和外筒間均勻地流動，從處進入內筒和加熱管進行有效地熱交換。然後熱風在處匯集，在處無序混亂的熱內被均化。由於加熱箱熱風混合效果的作風，處的熱風溫度變化幅度很小，熱風經熱風排出口被完全均勻地分散開，從而保證了樹脂均勻乾燥。
  5. Abstract : the safety management is one of the important content for the enterprise management on the mine. the safe civilized production can ensure production operation smoothly. once safe production has been met several unfavorable factors at transform structure in the mine enterprise, as a result, the production included plenty of passive and difficult position. if all leaders and clerks changed ideas “ the safety first and putling prevention first ”, the management work would must push forward for the development of the mine enterprise

    文摘:安全管理工作是礦山企業管理的重要內容之一，安全文明生產是生產經營活動順利進行的保證，礦山企業在轉機建制中安全管理工作遇到諸多不利因素，導致安全管理工作一度出現被動與無序的局面，只要各級領導和全體職工提高認識，轉變觀念，牢固樹立「安全第一，預防為主」的思想，落實安全生產責任制，全方位開展安全生產標準化的創建，形成有效的安全文化氛圍，安全管理工作必將對礦山企業的發展起到巨大的推動作用。
  6. The paintings created by our branch contraption suggested to me that the seemingly random swirls in pollock ' s paintings might also possess some subtle order, that they might in fact be fractals

    我們的樹枝畫暗示帕洛克繪畫中看似無序的渦漩，或許也含有某種微妙規則，說不定它們還可能是碎形！
  7. It can be used in any complex environment, can locate all paths from transmitter to receiver which avoid redundant calculation, and it is a standard 3 - d forecast model ; in addition, it is a point to point ray tracing method based on specular theory which do n ' t carry out the receive test ; furthermore the model adopt the reverse arithmetic which exert the tree concept in data frame and establish a virtual fountain tree permanently, the proagmme can back - search the virtual fountain tree when it is running. these operation increase the calculate speed and it result in the higher receive efficiency and precision. the thesis design a programme to compare the prediction results based on ray tracing method of virtual fountain tree between the measurement results and prediction results based on the other transmittion models. the comparsion result indicate the new model is a better model

    它可應用於任何復雜的傳播環境中，能找到發射機到接收機之間的所有電波傳播路徑而無須冗餘的計算，是一種準三維的預測模型；另外，從本質上講，它仍然是一種基於鏡像理論的點對點的射線跟蹤法，所以它無須進行接收測試；而且由於採用了反向演算法，運用數據結構中多叉樹的概念，先確定需要計算的場點位置，找出所有能從源點到達場點的射線，並且可一次性建立一個虛擬源樹，以後每次的計算只要通過對該樹進行後序遍歷即可，大大提高了運算速度，因而有較高的接收效率與精度。本文對該模型進行了相應的模擬，並將其預測結果與實測結果以及基於cost231經驗性模型和基於強力射線跟蹤確定性模型的預測結果進行了比較，結果表明了該模型的優越性。
  8. After that, we designed a new data model, called inter - related successive trees irst, to find frequent patterns from multiple time series without generation lots of candidate patterns

    在挖掘演算法實現上，根據序列特徵模式的有序性和重復性，提出了一種無須生成大量的候選模式集的互關聯后繼樹挖掘演算法。
  9. After that, we designed a new data model, called inter - related successive trees irst, to find frequent patterns from multiple time series without generation lots of candidate patterns. experiment illustrates that the method is simpler and more flexible, efficient and useful, compared with the previous methods

    在挖掘演算法實現上，根據序列特徵模式的有序性和重復性，提出了一種無須生成大量的候選模式集的互關聯后繼樹挖掘演算法，極大地提高了挖掘效率。
  10. The analysis of variation in han group revealed geographic difference. the genetic distances based on the sequence of mtdna haplotype have been obtained and the phylogenetic trees were constructed

    在測定的無關個體mtdna單倍型序列的基礎上做進化距離分析，並構建了各民族內部和民族間的系統發育樹。
  11. Validation study of forensic science was carried out using forensic samples such as hair, nail and badly degrade bone. the method has also been used in case work to validate the practicability. maga2 software was employed to analyze the genetic distance between samples and construct the phylogenentic tree

    用毛發、指甲、微量血痕及各種陳舊骨骼樣本對所建立的方法進行法醫學有效性測試，並用實際案例驗證其實用性；應用所建立方法對漢族、黎族、維吾爾族、瑤族、藏族無關個體樣本共446份進行序列分析，調查不同民族mtdna多態性；應用mega2軟體對所得各民族數據做進化距離分析，並構建各民族內部和民族間的系統發育樹，探討各民族間的遺傳關系。
  12. It is important to re - construct the credibility of the industry of certified public accountants, for both maintaining the order of securities market and protecting the interest of investors

    因此，加強對注冊會計師法律責任的研究，建立完善的民事賠償機制，無論是對維護證券市場秩序、保護投資者利益，還是對注冊會計師行業重樹公信力都至關重要。
  13. Suffix tree is a good index structure for smaller sequences, but it not suit large sequences, due to the so - called “ memory bottleneck ”. the suffix array is the closest competing structure, as it needs less space than a suffix tree. however, it is not convenient for searching

    對于較小的序列來說，后綴樹索引無疑是一種很好的解決辦法，但由於它產生了「內存瓶頸」 ，不適合大的序列;后綴數組是另一種最具有競爭力的索引結構，與后綴樹相比，它需更少的存儲空間，但在數據搜索方面卻效率較低;基於q - gram和q - sample的索引方法雖然能用於快速搜索，但是不能用於搜索相似度低的數據。
  14. They can be expressed as ordered vectors, unordered groups, linked lists, trees, graphs or other forms that the programming language supports

    它們可以表示為有序的向量、無序的組、鏈表、樹、圖或編程語言支持的其他形式。
  15. Disordered carbon materials are prepared by pyrolysis of sugar and phenol resin at high temperature

    分別以蔗糖和熱固性酚醛樹脂為前驅體，在高溫下熱解得到了無序層狀結構熱解炭材料。
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