index-tree 中文意思是什麼
index-tree
解釋
指標木-
According to the assessment & acceptance management characteristics and demands of s & t project in china, this paper discusses and builds the index system of s & t project assessment & acceptance, depicts the stage assessment & acceptance methods, and then constructs the decision model based on c4. 5 decision tree method
根據我國目前科技項目驗收評估管理的特點和要求，討論並建立了科技項目驗收評估的指標體系，闡述了分階段的科技項目驗收評估方法，建立了基於c4 . 5決策樹科技項目驗收評估決策模型。 -
The species richness and diversity index order of coniferous and broad - leaf forest and evergreen broad - leaf forest in different geology plots was as follows : shrub layer > herb layer > tree layer ; in shrub plots, the order was herb layer > shrub layer. in general jsw, jsi and ea index order was herb layer > shrub layer > ree layer. that indicated that the species of tree and shrub in karst area distributing is not even, and the species, which are dominant and adapt to the karst environment are cleaer
不同地區樣地針闊混交林和常綠闊葉林物種豐富度指數、多樣性指數均表現為灌木層草本層喬木層，而在灌叢樣地，物種豐富度和多樣性指數表現為草本層灌木層；整體上，石灰巖地區樣地jsw 、 jsi和ea指數為草本層灌木層喬木層；砂頁巖地區樣地為灌木層草本層喬木層。 -
Searching in high - dimensional spaces : index structures for improving the performance of multimedia databases. acm computing surveys, 2001, 33 : 322 - 373. 2 guttman a. r - tree : a dynamic index structure for spatial searching
本文試圖將高維空間中的每個點對應的兩種距離尺度通過線性組合的方式表達成復合距離尺度，從而能夠較好地縮小查詢空間，提高查詢效率。 -
Dbpropval it btree - the index is a b - tree. dbpropval it hash - the index is a hash file using, for example, linear or extensible hashing
Dbpropval _ it _ hash -該索引是使用例如線性或可擴展哈希演算法的哈希文件。 -
The research result is following : the annual species richness index of studied forest plant community averaged 64. 688, the species diversity index was 2. 982. the proportion of every functional group of forest plant community is : herbaceous layer ( average is 68. 89 % ) > tall tree layer ( average is 15. 266 % ) > shrub layer. ( average is 15. 845 % ) the proportion of every functional group in forest insect communities is remarkably different, and the order of the proportion is herbivorous insect group ( average 0. 729 ) > predatory natural enemy insect group ( average 0. 136 ) > parasitical insect group ( average 0. 135 ). with seasonal change, the proportion of herbivorous and predatory insect group decreased obviously, while that of parasitical insect group increased on average by 147 %
研究結果如下：森林植物群落種的全年物種豐富度指數平均為64 . 688種，多樣性指數為2 . 982森林植物群落內各功能類群物種所佔比重依次為：草本層（平均為68 . 89 ） >喬木層（平均為15 . 266 ）灌木層（平均為15 . 845 ） 。森林昆蟲群落中，全年各功能類群所佔比重以植食性昆蟲類群為最大，平均佔0 . 729 ；捕食性昆蟲類群次之，平均佔0 . 136 ；寄生性天敵類群為最小，平均為0 . 135 。 -
After analysis of tm / etm + data ' s advantage over the forest change detection, tasseled cap transformation, principal component analysis and normalized difference vegetation index were chosen to enhance the vegetation spectral information. expert classification system was adopted to extract the main tree species in the littoral shelter forest
在分析etm +數據在森林資源監測中的優勢的基礎上，通過纓帽變換、主成分分析和植被指數法增強植被光譜信息，結合專家分類系統對沿海防護林主要樹種進行提取。 -
Based on the five types of the construction systems of the yellow river that are portioned according to the distribution region, position and function of the protection forest in ningxia autonomous region, the distribution of the system, the arrangement of tree species, the growth status and protection structure index are analyzed
摘要該文在將寧夏段黃河護岸林防護林體系劃分為5種類型的基礎上，分析了該地區防護林的體系分佈、樹種配置、生長狀況及防護結構指標。 -
Analysis on the species richness and diversity index, community evenness in different plots and layers of evergreen broad - leaved forest in shiyang forest center in wencheng, zhejiang province resulted that species richness and diversity index, community evenness of the second sublayer of tree layer was much greater than that of the first sublayer in the vertical structure of the community
對文成縣石?林場常綠闊葉林的不同樣地、不同層次的物種豐富度、物種多樣性指數和群落均勻度進行了分析，結果表明:在群落垂直結構中，喬木層第2亞層的物種豐富度、物種多樣性指數、群落均勻度顯著大於第1亞層。 -
In the first place, the paper briefly discusses issues related to the main index mechanisms in spatial and temporal, studies the access methods of spatio - temporal databases which has been presented. furthermore, the paper explains the storage mechanisms in stadbs ( spatio - temporal analysis database system ) and presents a hr - tree index structure based on main memory to realize the index mechanism of stadbs, it ' s main technologies were discussed in detail. lastly, a visual demo of hr - tree based on main memory was introduced in this paper
本文在分析討論了主要的空間和時間索引技術的基礎上，研究、分析了時空數據的存取方法，對已提出的時空索引技術進行了分類、比較；根據時空分析數據庫stadbs存儲機制的特點，採用基於主存的hr -樹作為stadbs時空數據的索引結構，設計與實現了stadbs的時空存取方法，論文對stadbs時空索引機制的設計與實現作了較詳細的介紹，同時闡述了基於主存的hr -樹可視化演示程序的主要實現方法。 -
Nonclustered indexes have a b - tree index structure similar to the one in clustered indexes
非聚集索引與聚集索引有一個相似的b樹索引結構。 -
The second part includes the index of child suffix tree, and some other information for finding the location of every child suffix tree in disk quickly
第二部分是索引部分，包括子后綴樹的索引和其他信息。利用這部分信息，可以快速定位每棵子后綴樹在磁盤中的位置。 -
In a word, the landscape heterogeneity exist in different scales and so the green space has a landscape pattern which is much favor to the stability of ecosystem. 4 ) : its green patch ' s figuration index and fractal index are correlating with its tree diversity index and the shape design of different styles patches in this park is adapted to the planning of its trees diversity. 5 ) : its gr een patch ' s figuration index and fractal index are not correlating with its plant community dissimilarity index and so the design of the landscape heterogeneity in the interal patch is not suitable for its pattern
花港觀魚公園綠地景觀格局參數中斑塊形狀系數與分維數都與各斑塊樹種多樣性指數表現出相關性，滿足了生態系統空間相關性的要求。花港觀魚不同類型綠地斑塊形狀與樹種多樣性配合設計是成功的。花港觀魚綠地不同類型斑塊內部群落相異性指數與其對應的斑塊格局參數沒有呈現相關性，這個綠地生態系統的植物群落差異性屬性不具有空間相關性，花港觀魚綠地斑塊內部異質性設計與其景觀格局不匹配。 -
The species diversity index of the tree layer was a bit low, and the general trend was shrub layer > treelayer > herb layer
喬木層物種多樣性指數偏低，垂直結構各層次間物種多樣性大小依次為灌木層>喬木層>草本層。 -
The species richness and diversity index of the tree layer and the shrub layer was obviously higher than that of the herb layer, and their evenness had evident difference
喬木層、灌木層的物種豐富度、物種多樣性指數均大於草本層，且差異極顯著，群落均勻度差異顯著。 -
Gets or sets the image - list index value of the default image that is displayed by the tree nodes
獲取或設置樹節點顯示的默認圖像的圖像列表索引值。 （從 -
Gets or sets the image list index value of the image that is displayed when a tree node is selected
獲取或設置當樹節點選定時所顯示的圖像的圖像列表索引值。從 -
Gets or sets the image list index value of the image displayed when the tree node is in the unselected state
獲取或設置當樹節點處于未選定狀態時所顯示圖像的圖像列表索引值。 -
Gets or sets the image list index value of the image that is displayed when the tree node is in the selected state
獲取或設置當樹節點處于選定狀態時所顯示的圖像的圖像列表索引值。從 -
Csa - tree : an optimized high - dimensional index tree for main memory access
一種改進的高維主存索引樹 -
Based on v - reactive index tree and perspective query, we propose a mechanism of integrating lod and generalization at multi - scale
以v - reactive樹索引結構和透視查詢為基礎，本文提出了一種細節層次技術和多比例尺綜合技術的集成實現機制。
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