tree cell 中文意思是什麼

tree cell 解釋
樹形單元
  • tree : n 特里〈姓氏〉。n 1 樹〈主要指喬木，也可指較大的灌木〉。 ★玫瑰可以稱為 bush 也可以稱為 tree 2 木...
  • cell : n 1 小室，單室；隔間，艙；〈詩〉茅舍；（單個的）蜂窩，蜂房。2 〈詩〉墓穴，墓。3 （大修道院附屬的...
  1. Epithelial cell defenses include the ciliated epithelial cells, goblet cells, and other secretary epithelial cells of the tracheobronchial tree.

    表皮細胞的防禦包括起纖毛作用的表皮細胞、環狀細胞和氣管支氣管樹的其他起分泌作用的表皮細胞。
  2. Compared with octree data structure, the omni - tree data structure could reduce the meshes " total numbers and get better mesh quality. this paper uses cell - centered finite volume spatial discretization and four - stage runge - kutta time - stepping scheme with some convergence acceleration techniques such as local time stepping and enthalpy damping

    在流場計算中，本文採用格心格式的有限體積法用二階中心差分對歐拉方程作空間離散，用四步龍格庫塔方法作顯式時間推進。
  3. Rubber tree ( hevea brasiliensis ) is an important economic woody - crop in tropical areas. its latex is the unique source of crude rubber used in current industry. because of its special and important use, the rubber tree has been extensively planted in tropical areas. increase production is always the main target in rubber tree cultivation. since the ethrel was applied in increasing latex production in 1968 for the first time as a chemical stimulant, not only the latex production had been increased largely, but also a new set of rubber tapping system had been established, leading to a series of economic benefit. owing to ethrel " s extensive application, its side effects had been found more and more obviously, such as tapping dry, speeding up senescence, shortening the life span of rubber tree etc. in order to overcome the side effects and increase production more availably, for a long time, people had carried out lots of research work on cell level, membrane level, physiology and biochemistry of laticifer contents. but the mech anism why ethrel increased latex production was not yet understood completely. this study had cloned the ethylene receptor gene ( efrl ) from rubber tree, and researched the relationship between etrl expression in laticifers and ethrel stimulation on transcription level and protein translation level. the results were as follows : 1

    但是，由於乙烯利應用的普及，乙烯利刺激割膠引起橡膠樹發生死皮病及加速膠樹衰老，縮短膠樹壽命等副作用也越來越明顯。為了克服這些副作用，使乙烯利能更有效地刺激增產，長期以來，人們在細胞水平、膜水平和乳管細胞內含物的生理生化層面上進行了大量的研究，但仍未完全了解乙烯對膠樹的作用機制。本研究從分子水平入手，克隆橡膠樹的乙烯受體基因（ etr1 ） ，並在轉錄水平和蛋白質翻譯水平上研究etr1基因在乳管細胞中的表達及與乙烯刺激的關系，取得了以下結果： 1
  4. Based on tree data structure, the cartesian grids about 2 - d and 3 - d configurations are generated using the surface - cutting procedure. in the course of grid generation, a two - step ray - casting algorithm to excluded cells inside the body and a cell - merging technique to avoid numerical instability are fully developed. after creating these surrounding grids, the cell - cutting algorithm is designed to perform geometry - based refinement of grids, and greatly improve the applicability and quality of grid generation

    採用物面切割，基於叉樹數據結構，發展了一種普遍適用於二維和三維外形的直角切割網格生成方法；構造兩步射線求交演算法，刪除外形內的固體網格，以及小網格合併演算法，確保網格質量和流場計算的穩定性；運用對任意網格的切割細分演算法，實現了針對幾何外形的自適應網格加密，使得網格生成更具普適性和靈活性。
  5. Then in order to realize the universal representation, the xml dtd is created based on the hierarchical tree structure for data instance. at last with the help of sx _ viewer, to prove feasibility and practicability, the process and result of the conversion example is presented. in the 6th chapter, according to the xoem model, the base cell of fractal hierarchy - extensive hyperlinks is proposed as unified information structure for xml ; and then the description of the corresponding rules is presented ; at last a uniform template of the xml dtd is put forward

    在第五章中，針對產品數據表達的step標準，重點研究了在www環境下step產品數據的web描述方法，建立了express語言與xml語言模式的匹配，在此基礎上研究了steppart21物理文件的xml轉換和表達，建立了統一的xmldtd ，從而在保持可擴展性和可移植性前提下實現了基於xml的step物理文件表達的通用性、統一性和完整性，最後結合實例介紹了sx _ viewer轉換器實現steppart21物理文件的轉換功能。
  6. There are many drawbacks in some aspects such as product model editing in the current systems based on process. people study the feature model from managing geometry model elements and put forward the feature model based on cell. in order to overcome those shortcomings and improve modeling ability and efficiency, they apply the feature dependency graph which makes feature modification independent on process tree

    同時，將參數化技術引入設計系統中，使得特徵具有可調整性，提高了系統設計效率。當前基於歷程的特徵造型系統在產品模型的可編輯性和易編輯性的技術方面存在許多弊端。為此，從管理幾何模型元素這一層次上研究特徵模型，提出了基於細胞元的特徵模型表示方法。
  7. The phylogenetic tree was constructed based on sequence comparison and analysis. the result showed that c strain derived from rabbit spleen tissue, c strain adapted to sk6 cell, shimen virulent strain all belonged to group 1. 1, and the prevalent virulent strains belonged to subgroup 2. 1 or subgroup 2. 2. this indicated there were at least two subgroups, which were prevailing in china, and the prevalent virulent strains were diverse far from c. strain vaccine virus

    通過序列比較和系統發生關系分析發現： c -株兔組織毒、 c ?株細胞毒和中國50 60年代流行的石門強毒株同屬于組群1 （ group1 ） ；近期豬瘟流行毒株均屬于組群2 （ group2 ）的兩個不同的亞組群（ subgroup2 . 1和2 . 2 ） ，表明我國目前流行毒株至少有2個亞組群。
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