比例尺比率 的英文怎麼說

中文拼音 [bǐlìchǐbǐlǜ]
比例尺比率 英文
scale ratio
  • 比 : Ⅰ動詞1 （比較; 較量高下、 長短、距離、好壞等） compare; compete; contrast; match; emulate 2 （比...
  • 尺 : 尺名詞[音樂] （中國民族音樂音階上的一級 樂譜上用做記音符號 參看「工尺」） a note of the scale in ...
  • 率 : 率名詞（比值） rate; ratio; proportion
  • 比例 : 1. （長度上縮小和放大的倍數） scale; scaling 2. （比率） proportion; ratio; proportionality
  • 比率 : ratio; proportion; rate比率計 ratio meter
  1. It is found that the electric, field improves elongations in 2090 and 2090 + ce alloys markedly, especially in 2090 alloy, but has little effect on strengths. at the same time, the electric field lessenes percentages of intergranular delamination and increases transgranular fracture and microscopic plastic deformation. besides, the electric field makes both average particle size and its distributing range of 8 " phase smaller, and reduces the half width of pfz in aged alloys

    研究表明：固溶電場可顯著提高2090合金及2090 + ce合金的延伸率，尤其是對2090合金，但對強度則無明顯的影響；同時，固溶電場減少合金的沿晶分層斷裂比例，並增加穿晶斷裂及微區塑性變形；固溶電場還使合金時效后相顆粒的平均尺寸減小、尺寸分佈范圍減小，並使pfz的寬度減小。
  2. By calculating large quantity of examples, this text studies earthquake resistant behavior of tapered portal frame with pined bases and analyzes its natural frequency, natural period of vibration and vibration mode. by comparing interior forces of pillar top, beam end and span midpoint in two conditions that seismic action effect participates combination of forces and not when portal frame is n ' t changed, ensure conditions that combination of seismic action effect has controlling f unction during tapered portal frame design, and tapered portal frame demands anti - earthquake design

    本文通過大量算例分析，研究柱腳鉸接楔形變截面門式剛架的抗震性能，並對其自振頻率、振型進行了分析；通過比較地震作用效應參與荷載組合與不參與荷載組合兩種情況下，樑柱截面尺寸不變時，柱上端、梁端、跨中截面處的內力大小，確定在什麼情況下地震作用效應組合起控製作用，變截面門式剛架需要進行抗震設計。
  3. Applying the basic theories of spatial data mining and geomorphology, taking the loess plateau of north shaanxi province, china as the research area, this dissertation explored the theories and systematic structures of geomorphologic data mining and acknowledge discovery from dems, ascertained the systematic structures of topographic factors and synthetic topographic acknowledge, as well as systemically summarized mining algorithms from dems. the author pa id more attention also to analyze the principle and algorithm of flow length, curvature, relief, the earth ' s surface incision and gully density. in this research, the elementary constitutes and mining algorithms of regional character acknowledge in the loess plateau were probed

    本研究在廣泛總結前人研究成果與研究經驗的基礎上，利用空間數據挖掘和地形地貌學的基本理論，以陜北黃土高原多地貌類型區為實驗樣區，以1 10000比例尺dem為樣本數據，探討了dem中地形地貌數據挖掘與知識發現的理論方法和體系結構；確定了宏觀和微觀地形因子、地形綜合特徵知識的體系結構；系統總結了dem基本地形因子的提取演算法，並重點對坡長、曲率、地形的起伏度、切割深度和溝壑密度因子提取的原理與演算法作了深入的分析；提出了黃土高原地區區域特徵知識的基本構成及其系統完整、科學可行的挖掘提取演算法；擴充了arcviewgis軟體平臺中dem空間分析的基本功能；實現了以delphi7 . 0為平臺的地形信息輔助挖掘系統的設計與開發；完成了對黃土高原多地貌類型區（樣區）地形信息空間分異特徵的分析。
  4. The symbols used by one cartographer can be saved and moved between different pc, then different cartographers may use the same symbols to design map and get the same map result. how to quickly design a map is discussed finally

    最後從實際工程需要出發，研究如何提高海量數據的制圖效率，引入了模板庫的概念，利用模板庫保存符號、比例尺、圖例、指北針等的風格樣式，制圖者通過模板庫來共享勞動成果。
  5. Interconnection dimensions become the limitation for new performance design while the size traditional transistor has met the demand of challenge. thus, the study of interconnection delay becomes more important for current circuit design and technology

    為了提高ulsi的頻率特性，按比例縮小晶體管的特徵尺寸的努力受到了互連線本徵特性和寄生效應的限制，互連線的rc延遲成為ulsi進一步提高頻率特性的瓶頸。
  6. The slope of a line is independent of the scales chosen to prepare the graph.

    直線的斜率與繪圖所選用的比例尺寸無關。
  7. Abstract : biological invasions are a continuous feature of a non - equilibrium world, ever more so as a result of accidental and deliberate introductions by mankind. while many of these introductions are apparently harmless, others have significant consequences for organisms native to the invaded range, and entire communities may be affected. here we provide a survey of common models of range expansion, and outline the consequences these models have for patterns in genetic diversity and population structure. we describe how patterns of genetic diversity at a range of markers can be used to infer invasion routes, and to reveal the roles of selection and drift in shaping population genetic patterns that accompany range expansion. we summarise a growing range of population genetic techniques that allow large changes in population size ( bottlenecks and population expansions ) to be inferred over a range of timescales. finally, we illustrate some of the approaches described using data for a suite of invasions by oak gallwasps ( hymenoptera, cynipidae, cynipini ) in europe. we show that over timescales ranging from 500 10000 years, allele frequency data for polymorphic allozymes reveal ( a ) a consistent loss of genetic diversity along invasion routes, confirming the role of glacial refugia as centres of genetic diversity over these timescales, and ( b ) that populations in the invaded range are more subdivided genetically than those in the native range of each species. this spatial variation in population structure may be the result of variation in the patchiness of resources exploited by gallwasps, particularly host oak plants

    文摘:生物入侵是不均衡世界的一個永恆話題，尤其是當人類有意或無意地引入物種后.很多引入顯然是無害的，但另外一些則有著嚴重的後果，會給入侵地的生物以至於整個生物群落造成影響.本文總結了分佈區擴張的常見模式，概述了它們對遺傳多樣性和種群結構式樣所造成的影響.描述了如何根據以一批遺傳標記所得到的遺傳多樣性式樣來推斷入侵途徑，來揭示伴隨擴張選擇和漂變在形成種群遺傳樣式中的作用.本文對日益增多的群體遺傳學方法進行了總結，這些技術可以用來在不同的時間尺度上推斷種群規模所發生的巨大變化（瓶頸效應及種群擴張） .最後，我們以歐洲櫟癭蜂（膜翅目，癭蜂科，癭蜂族）一系列入侵的數據為例對一些方法進行了說明.從500 10000年的時間尺度上，多態的等位酶位點上等位基因頻率的數據表明: 1 ）遺傳多樣性沿入侵路線呈不斷下降的趨勢，支持了冰河期避難所作為遺傳多樣性中心的作用; 2 ）入侵地區的種群與該物種原產地的種群相比，遺傳上的分化更為強烈.這種種群結構在空間上的變異可能是被櫟癭蜂開發的資源尤其是櫟樹寄主在斑塊上出現變異的反映
  8. Abstract : in light of thicker grain and smaller viscosity of debris flow, a segmented simulation of the debris flow with flume is presented. for the first time. more difficult resistance similarity is brought about by geometric rate without excessive coarsing and discontinuous similarity of sand grain composition in model is eliminated with different grain scale. on this basis the density similarity and sand conveying similarity are achived. the method presented is verified through a model test case

    文摘:針對水石流顆粒粗，粘性小的特點，提出了利用水槽進行分段模擬水石流的設想，首次通過幾何變率解決難度較大的阻力相似問題，改變了以往過度加糙的方式;通過變粒徑比尺的方法消除了模型沙級配不連續相似的問題，較好地實現了固體物質級配相似，達到了泥石流的密度相似和輸沙相似.通過水槽概化模型試驗實例，對本方法進行了驗證
  9. Scales and sizes for frequency characteristics and polar diagrams in acoustics

    聲波的頻率特性和極線圖表的比例和尺寸
  10. To obtain a true measure of the effect of racial discrimination in employment it is necessary to adjust the gross black / white income ratio for these productivity factors

    為了獲得一個可*尺度，用以衡量就業中種族歧視造成的後果，有必要根據這些效率因素調整黑人和白人的收入比例。
  11. Analysis of frequency for plane compliant mechanisms based on the pseudo - rigid - body model was illustrated in detail, and the effect of section parameter 、 structure size and characteristic parameter of material on mechanisms were discussed respectively ; a newly relative index of frequency characteristic for the material of compliant mechanisms was advanced and some examples were given to validate its reliability

    摘要以偽剛體模型為基礎對平面柔順機構的頻率特性進行了詳細的分析，並分別就機構截面參數、結構尺寸、材料參數對頻率的影響進行了討論；針對柔順機構材料特點提出了新的頻率特性比較指標，給出了數值算例，驗證了評價指標的可靠性。
  12. Both the simplex method and the dfp method are referred to compare the efficiency of the direct search methods with that of the gradient methods. the differential method of stochastic fem is used to calculate the gradient of the objective function hi dfp method. firstly, deterministic fem for seepage is introduced systematically and stochastic fem for seepage is presented

    為了對比直接法和梯度法的計算效率，本文採用兩種優化方法對滲透系數的確定性反演問題進行了探討：單純形法和變尺度法，在分析算例的基礎上，筆者就這兩種優化方法的效率和穩定性等方面的問題提出自己的觀點。
  13. This dissertation presents several image fusion methods based on mpd, such as image fusion based on laplacian pyramid ( lp ), image fusion based on ratio pyramid ( rp ), image fusion based on contrast pyramid ( cp ), and image fusion based on gradient pyramid ( gp )

    文中給出了多種基於多尺度塔形分解的圖像融合方法，例如，基於拉普拉斯金字塔的圖像融合方法、基於比率金字塔的圖像融合方法、基於對比度金字塔的圖像融合方法和基於梯度金字塔的圖像融合方法。
  14. One of the common characters between traditional algorithms based on dct image coding is that regardless of the content of the image, they use a fixed size block to process, for example, jpeg, mpeg - 1 / 2, h. 263 use constant 8 * 8 block mode. the main work of this article is to propose a sequence images compression algorithm that is based on adaptive block dividing and object to the disadvantages of the one based on fixed - size block dividing. the proposed algorithm is an image compression method, which can auto - adjust dct block size ( 8 * 8 or 4 * 4 ) according to the difference of corresponding blocks between two frames of the sequential image and doesn ’ t process any unnecessary data blocks in order to enhance coding efficiency

    傳統的基於dct的圖像編碼演算法的一個共同特點就是:不管圖像的具體內容，採用固定的塊尺寸進行統一的處理，例如jpeg ， mpeg - 1 / 2 ， h . 263均採用固定的8 8分塊方式，本文的重點工作是針對這些採用固定的塊尺寸進行統一處理的演算法的一些缺點，提出了一種基於自適應分塊的序列圖像壓縮演算法，該演算法是一種根據序列圖像兩幀間對應塊的差別自動調整dct變換尺寸（ 8 8或4 4 ） ，對不必要的數據塊不進行處理，以提高編碼效率的序列圖像壓縮編碼方法，具有較高的編碼效率和較好的壓縮效果，與傳統的採用8 8固定分塊方式的壓縮編碼演算法相比，性能有較大幅度的提高，在文中，作者對兩者的壓縮編碼性能進行了分析比較。
  15. It is very difficult to query, statistics and analyze various kinds of scale figure and historical datum with traditional management method. because all kinds of statistical report form, scheme picture, thematic picture of the administrative department are calculated and completed by hand basically, it is very hard to meet the needs of fast - developing magnanimity data management and cause low efficiency of management, great large workload of upgrading information, the mass of manpower, material resources and resource are wasted beyond measure

    傳統的管理辦法對各種比例尺圖形以及歷史資料的查詢、統計和分析難度較大，管理部門的各類統計報表、方案圖、專題圖基本由手工計算和繪制完成，很難適應快速發展的海量數據管理要求，導致管理效率低，資料更新工作量大，造成人力、物力和資源的極大浪費。
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