樹型等級 的英文怎麼說

中文拼音 [shùxíngděngjí]
樹型等級 英文
tree qualification
  • 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...
  • 等 : Ⅰ量詞1 （等級） class; grade; rank 2 （種; 類） kind; sort; type Ⅱ形容詞（程度或數量上相同） equa...
  • 級 : Ⅰ名詞1 （等級） level; rank; grade 2 （年級） any of the yearly divisions of a school course; gra...
  • 等級 : 1 （按質量、程度、地位等的差異而作出的區別） grade; rank 2 （在社會地位和法律地位上不平等的社會集...
  1. Niche breadth of four dominate populations at three age groups was studied by the methods of resource utilization ability and ratio. the result shows that : symplocos sectchuanensis is a typical gengeration species whi ch resource utilization ability is strong, and distribution is wide. meanwhile, go rdonia acuminata, castanopsis fargesis and pinus massoniana specialized at some d egree in resource utilizationm, their distribution is limited. especially, the ju venile of pinus massoniana specialized outstandingly. with the devlopment of pinu s massoniana, which is the pioneer population in mt. jinyun, the environment become s unfit to it ' s juvenile. it turns to needle and evergreen broad - leaves mixed fo r est. because the tolerance toward shading of gordonia acuminata is lower than tha t of castanopsis fargesis, gordonia acuminata will be substituted by castanopsis fargesis and other evergreen broad - leaves species are the edificators. the popul ation ' s ability of resource utilization is the inner factor of population distri bution and community succession. the distribution of light and the concentrate of nutrient ( such as n ) is the outer factors of community succession

    對縉雲山森林植被的4個優勢種群3個年齡級生態位寬度進行了研究.結果表明，川灰木利用資源的能力最強、分佈廣，為典型的泛化種.大頭茶、栲樹、馬尾松對資源的利用在一定程度上特化，分佈上有一定的局限性.馬尾松的中齡組與幼齡組特化現象十分顯著.縉雲山森林植被的先鋒種馬尾松的發展，導致環境的改變不適于其幼齡個體的生長，群落演替到針闊葉混交林階段，最後發展為以栲樹等為建群種的常綠闊葉林.種群的資源利用能力，是種群分佈與群落演替的內在原因，光因子和營養元素（如n ）是群落演替的主要外部動力
  2. Abstract : this paper introduces four typical light - retaining structures. they are frame girder with prestressed anchor ropes, antislide pile with preslressed anchor ropes, anchored nelwork with jetting concrete and retaining wall with root piles. these structures are successfully applied to the national highway no. 107 in guangdong province

    文摘:以國道107線清連一級公路上四個典型的邊坡病害治理工程為例，介紹預應力錨索格構梁、預應力錨索抗滑樁、錨噴掛網支護、樹根樁擋土墻等輕型支擋結構在公路邊坡病害治理工程中的應用
  3. According the key factors we find, we bring forward a new conception : multilevel suppressor and design a new high performance suppressor whose ion - exchange membrane has bigger areas and using three electrodes including one cathode ( anode ) and two anodes ( cathode ), at the same time we fill the suppression compartment with one kind of ion exchange resin which has moderate exchange capacity. according to our experiment ' s results, we find the new type suppressor has quite high working current efficiency and suppressing capacity. in most cases, the suppressor ' s current efficiency is over 90 % ; the suppressor can transform the naoh ( concentration : 200mmol / l, flow rate : i. oml / min, conductance : over 10000 i - i s cm " ) to pure water ( conductance : 8. 9 it s cm in chapter 3, the high performance suppressor is applied in determination some trace - amounts ions in plating solution, sewage. in this chapter, we also have a research on the gradient ion chromatography

    第二章首先以xyz - 1型電化學抑制柱為例，分析了電化學抑制柱的抑制過程得出影響抑制容量的主要因素主要是抑制柱的電流效率和離子交換膜的極限電流密度，因此採用中等交換能力的離子交換樹脂作為抑制室的填料以提高電流效率，在通常情況下電流效率可達到90以上；在選用同種離子交換膜的前提下，可通過增加離子交換膜的有效面積達到提高極限電流的目的從而提高抑制柱的抑制容量，因此提出了多級抑制的概念並據此研製了共電極式高容量電化學抑制柱，該抑制柱最高可將流速為1 . 0ml / min ，濃度為200mmol / l電導率超過10000 s ? cm ~ （ - 1 ）氫氧化鈉溶液抑制為電導率低至8 . 9 s ? cm ~ （ - 1 ）的純水，並且具有穩定性高、分析結果準確等優點。
  4. ( 2 ) wetland eco - tourism resources. on the basis of the assessment of the wetland plants, ancient tree and famous forest, waterfowl, we applied the digitalization principle and methods to study the wetland eco - tourism resources, and set up a mode and system of wetland landscape resource eco - assessment. then, we divided the landscape into nine factors such as the wetland and landforms, the landscape water, the waterfowl and animals, the wetland plants, the value of wetland landscape aesthetics, appreciation and heritages, the wetland cultures, the value of wetland research and popularity, the ecological environment and tourist capacity, the tourism duration, condition and orientation

    根據景觀質量數字化結果，將11種景類74種植物景型將其劃分為、 、 、 、級五個等級；將古樹名木分特級（ 9棵） 、級（ 41棵） 、級（ 64棵） 、級（ 22棵）四類，還分別制定植物景觀四種開發模式、古樹名水分類開發-保護-撫育措施四種模式；將57種濕地動物劃分特級、一級、二級、三級、四級。
  5. According to the complexity of pattern, the mined characteristic patterns could be sorted as frequent item, frequent sequence and frequent sub tree, etc. the paper builds tree - model of rna molecules and utilizes frequent sub tree mining algorithm to mine common topological patterns among rna secondary structures

    根據特徵模式復雜性，可分為頻繁項模式、頻繁序列模式以及頻繁子樹模式等。本文對rna分子建立樹形模型，利用頻繁子樹挖掘演算法挖掘rna二級結構中的公共拓撲模式。
  6. In order to build the function model for the mold enterprise, according to the idefo method, functions of the mold enterprise were divided from top to bottom, and the function trees such as the management function tree, the technology function tree and the manufacturing function tree were established respectively. based on those trees, the top - layer idefo function graph, o - layer idefo function graph, etc. were set up, in order to build the information model, following processes had been done : 1

    鄭州大學碩士學位論文按照idefo方法，本文首先將模具企業自頂向下按遞階層次進行功能分解，劃分為經營管理、工程技術分析與模具製作三方面，對這三個方面進行分析與細分后，可以分別得到其功能模型功能樹圖，對各功能樹繼續採用idefo方法，可以繪制出包括企業功能模型頂層idefo圖、企業功能模型0層idefo圖等各級功能模型圖，從而完成系統功能模型的建立。
  7. Abstract : this paper introduces a new class f epoxy glass - cloth laminate. the synthesis of a epoxy adhesive and the production process were studied. the properties of the laminate were compared with those of some similar products abroad. the results show that the laminate has higher adhesive strength 、 resistivity in moist conditions 、 dielectric strength and mechanical strength in higher temperatures. it is applicable for electric equipments, especially those to run in higher moisture or higher temperature conditions

    文摘:本文介紹了最近開發成功的一種新型f級耐高溫層壓板，研究了環氧樹脂膠粘劑的合成，層壓板的製造工藝及其性能，並與國外同類產品進行了對比，結果表明，它具有粘接強度、浸水后絕緣電阻及耐電壓、高溫機械強度高等特性，可用作大型高壓電機、輸變電設備以及核電工程、低溫高真空工程中絕緣結構材料，尤其適用於高電壓、高溫、高機械強度的工作環境。
  8. Second the use of glass epoxy substrate for steel profile epoxy substrate for the production of epoxy grp profiles with high rigidity and toughness, and small shrinkage, corrosion resistance, and high - grade insulation, and excellent machining, etc., can be said to be ideal substrate

    採用環氧樹脂為基材生產出的環氧型玻璃鋼型材具有剛性高韌性好收縮變形小耐腐蝕性好絕緣等級高機械加工性優異等等，可以說是非常理想的基材。
  9. Enterprise information system framework provides a series of reusable groupware, such as persistence layer which introduces dynamic value object 、 value list hander and command pattern, it encapsulates the detail of accessing database and affords the interface of different persistence layer framework ; basing on asynchronous javascript and xml ( ajax for short ), we develops the client validity check engine 、 dynamic cascading menu and common 、 dynamic tree structure groupware, as well as a set of tag library which include query 、 pagination 、 cache an so on. they reduce the code redundancy and predigests the development of interface layer enormously ; the security subsystem which is based on secure socket layer ( ssl for short ) and role - based access control ( rbac for short ) ensures the data security transmission and privilege control. furthermore, the model of enterprise application integration ( eai for short ) which based on web services, it supply some helpful explore for the sake of system integration and data communion for the future

    企業信息系統框架提供了一系列可復用組件，例如採用動態vo 、值列表處理器以及命令模式的持久層組件，封裝了數據庫訪問細節，並為不同的持久層框架提供調用介面;基於ajax （ asynchronousjavascriptandxml ）技術的客戶端校驗引擎、動態級聯菜單以及通用動態樹型結構組件，一系列查詢、分頁、緩存等標簽庫則減少了表示層的代碼冗餘，簡化了表示層開發;基於ssl登錄以及基於角色的訪問控制的安全子系統則初步實現了數據安全傳輸和權限控制;此外基於web服務的企業應用集成模型為今後系統集成、數據共享提供了有益探索。
  10. ( 2 ) xrd analysis showed that phenolic resin molecules could insert into the interlayer of organic - montmorillonite, but there are some differences of the behavior of intercalation between thermosetting phenolic resin and thermoplastic phenolic resin. ( 3 ) the cure kinetics parameters of epoxy resin / org - mmt / deta, epoxy resin / org - mmt / toa and epoxy resin / org - mmt / mz nanocomposites were investigated by differential scanning calorimetry ( dsc ). some kinetics parameters including the reaction order and activation energy were caculated with kissinger method

    （ 3 ） dsc研究了環氧樹脂二乙烯三胺蒙脫土、環氧樹脂桐油酸酐蒙脫土、環氧樹脂咪唑蒙脫土固化體系在不同org - mmt配比（ 0 ， 5 ， 10 ）及不同溫度下的固化動力學，除了運用常見的kissinger和crane方法求出活化能和反應級數等動力學參數外，還嘗試了用修正的avrami方程和自催化動力學模型研究了環氧樹脂蒙脫土體系的固化動力學。
  11. Data warehouse is a hot research area in 90s its main motif is to provide the decision - maker a powerful tool : gathering the data in pure consistent, relevant pattern, and making use of the data in managing analyzing, data - mining purposec that means that the decision - maker can use the tool to understand, grasp the situation of the business from different directions and forecast the future of it when using data warehouse, the processing speed determines data warehouse ' s practicability and processing ability the hoc ( highway decision center ) system realized before solves some key problems about intermediate scale data, mainly concentrating data warehouse performance coefficient when using hdc in large scale data, it encountered processing speed problem then the settlement of this problem becomes a major research point so, based on the former research achievements, the present task is to construct the renowned data warehouse architecture and its relevant algorithms, then adapts the system to the large scale dataset with data mining functions c this paper is a part of the research in order to construct the powerful system, a key problem is to cope with the processing - speed problem and the data space problem, etc, - caused by the large scale dataset and magnificent dataset this is also the core in the present data mining research this paper ' s motive is to design and realize a decision - tree classifier in the data warehouse system for large - scale dataset

    大型數據倉庫的處理速度問題目前是制約其推廣應用的關鍵所在，也是這一領域的一個重要研究課題，也正是我們當前工作的重點：在前期研究工作的基礎上圍繞提高大型數據倉庫處理速度問題，建立改進的數據倉庫系統模型和相關演算法，開發出面向中級以上企事業單位的、具有數據挖掘和分析能力的大型數據倉庫系統。建立大型數據倉庫所面臨的關鍵問題，是如何妥善解決實際業務數據的大規模、海量特徵所帶來的處理速度和空間等問題，這也是當前挖掘技術研究必然面對的核心問題。本研究的目的是設計並實現大型數據倉庫系統中的分類數據挖掘工具? ?決策樹分類器，主要工作是在綜合了解現有決策樹分類演算法的研究情況的前提下，對決策樹演算法適應大規模數據集的問題進行探討，力求設計出能較好地適應大規模數據的分類器演算法。
  12. To the issues that ipsec ca n ' t work with nat and multicast very smoothly and ipsec could n ' t also solve qos problem, combined with the national high - tech project of 863, the author has put forward the following viewpoints in the research of the security architecture model of ip layer : as to ipsec ' s working with nat, the author has proposed a scheme of using udp encapsulation along with configuring ipsec tunnel by dhcp and substituting ah with esp null encapsulation ; as to ipsec ' s working with the multicast, the author has proposed that combined with key management using complete binary tree, ipsec security process using espv3 and ahv2 can cooperate with multicast smoothly in multicast environments ; as to solving qos, the author has proposed a scheme of using two - level classifying and two - level scheduling with encryption scheduler and forwarding scheduler. the author has pointed out that combining ipsec with pki can make ipsec more flexible and more practical. based on the previous researches, the author has made an analysis of security risks of ip layer

    在ip層安全體系結構模型研究中，針對ipsec在與組播、 nat協同工作等方面存在的問題以及ipsec不能很好解決qos等方面的問題，作者結合國家863高技術項目的研究提出了解決方案：在nat協同工作方面作者提出了採用udp封裝、配合使用dhcp配置ipsec隧道並用espnull封裝代替ah的方案；在與組播協同工作方面作者提出了基於espv3和ahv2的ipsec組播安全處理以及基於完全二又樹的組播密鑰管理的方案；在解決qos問題方面作者提出了採用分類器1和分類器2的兩級分類以及具有加密調度器和轉發調度器的兩級調度的技術方案；同時作者提出了ipsec與pki技術緊密結合，能使ipsec安全通信更加靈活和方便實用。
  13. A good number of saplings and middle - sized piants were found and most of them were individuals of dbh ranging from 2 to 4 cm. the number of old individuals were relatively small

    幼樹和中等大小個體的數量較多，且絕大部分集中在2 4cm徑級，老齡個體較少，屬增長型種群。
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