選擇中心線 的英文怎麼說

中文拼音 [xuǎnzháizhōngxīnxiàn]
選擇中心線 英文
select centerline curves
  • : Ⅰ動詞1. (挑選) select; choose; pick 2. (選舉) elect Ⅱ名詞(挑選出來編在一起的作品) selections; anthology
  • : 擇動詞(挑選) select; pick; choose
  • : 名詞1 (用絲、棉、金屬等製成的細長的東西) thread; string; wire 2 [數學] (一個點任意移動所構成的...
  • 選擇 : select; choose; opt; election; choice; culling; alternative
  1. In the self - calibration scheme, the thesis emphasizes the accuracy of camera intrinsic and extrinsic parameters. we presents an accurate f method based on corresponding point adjustment. the method adjusts coresponding points according to the fixedness of projective transformed cross ratio, then calculates f matrix accurately through linear and non - linear methods. when computing intrinsic parameter, a matrix, we simplify the step, and stress on the two important parameters of a. the result will be getten through solving kruppa equation based on svd decomposition. in order to compute extrinsic parameters, we use linear method to get initial r and t, then apply non - linear method to accurate them

    提出了基於匹配點調整的f求精方法,先根據攝影交比不見性對手工的匹配點進行調整,再用性、非性結合的方法求精f矩陣;在計算內部參數a,進行了一定的簡化,把重放在a重要的兩個參數上,用svd分解法計算kruppa方程;在計算外部參數時,首先用性法求解r 、 t ,然後再用非性法迭代求精。
  2. In the absence of systemic infection or serious underlying disease, meticulous local therapy of the external canal and mesotympanum and the selection of proper eardrops could constitute the first - line treatment for patients with chronic suppurative otitis media

    適當地耳部局部用藥以及細地耳部局部治療,應列為慢性耳炎的第一治療方法。
  3. In order to solve the problem of engineering roadblock of abnormity wall template design, program alternatives, construction techniques and engineering roadblock, this paper discusses the difficulty of hyperbola template construction on the innovation of traditional simple curve zoom type huge template by combining the three dimensional space hyperbola rinse concrete wall in art performance theater of qingdao art center project construction, provides a method to design and choose heteromorphy component template

    摘要為了解決異形墻體模板設計、方案及施工工藝等技術難題,筆者結合青島市藝術工程藝術表演劇場三維空間雙曲清水砼墻施工,在傳統的單曲可調式大模板的基礎上進行了創新,很好的解決了雙曲模板施工的技術難點,為異型構件模板的設計、開拓了又一條思路。
  4. Series full - auto pipe expander with drawing device and program interface is used with extruding machine. it is also used solitarily, while expanding pipes, the machine adopts translation, the action is steady and corret, it does not damage pipe materical, the machine adoptes double - infrared heating oven type, each oven is equipped with heating cire, the shaping method adopts expanding - end shaping, the size of pipe mouth is correct. on its panel, there is a transfer swith of expanding solvent type pipe socket ( straigh port ) and expanding sealloop type pipe socket ( rport ). the choice of expanding pipe type is very convenient, the technologocal adaptability is strong, its main electric control elements are all imported. the syetem charecteristics are steady and reliable

    配有與主機配套的接料牽引裝置和相應的程序介面,既能與擠管主機聯使用,又可以作單機使用;擴管時管材的移動均採用平移方式,動作平穩準確而且不易損傷管材;這種機型採用紅外加熱方式且為雙加熱爐型,每個加熱爐都配有加熱爐芯;成型方式均採用擴管頭定型方式,管口成型尺寸準確;該機型在控制面板上設有擴溶劑型承介面(直口)和擴彈性密封圈型承介面( r口)的轉換開關,擴管方式十分方便,工藝適應性強;主要的電器控制元件均採用進口元件,系統性能穩定可靠。
  5. 2. autocad r14. 0 is selected as the exploitation platform through synthetical comparison, and the integrated system for on - line inspection and cad technology is established taking advantage of objectarx

    對各種cad軟體進行了綜合分析比較,了autocad14 . 0作為開發平臺,以objectarx為開發工具,建立了加工檢測與cad的集成系統。
  6. Fully considering the system ' s reliabilty, being real - time, speed and extensibility, it finally chooses the sdh as the system network of cors through deep compration and alalysis of four special data lines supplied by china telecom, so that an effective interconnection among the stations and the workstations in the control - center comes true

    摘要充分考慮系統可靠性、實時性、通信速率、可擴充性等因素,通過對國電信提供的4種數據專服務的綜合分析比較,了同步數字體系作為系統通信網路,實現了控制各工作站和各基準站之間的高速互聯。
  7. After the introduction of the selected elements, the thesis gives out a design which includes a front control center based on siemens s7300 plc 、 a line connection of the master profibus and the distributed intelligent i / o et200m system 、 a real - time display system of pressure sensors and a gas supply system with stop valve and electric actuator

    本文在介紹了所器件情況基礎上,設計了基於siemenss7300plc為前端控制,利用profibus總接分散式智能i / o et200m系統,壓力傳感器現場顯示,截止閥加電動執行器實現配氣的方案。
  8. Therefore the emergence and development of the culture of science and technology can be traced back to the initial conditions of geography and climate, viewed as the factor of internal fluctuation from the sensitiveness of the random choices of the cognitive subject to the initial conditions. since a culture has a pivotal component as its core, once the culture of science and technology comes into being under nonlinear interactions of the social subsystems, the core component functions in the same manner as order parameter in the self - organization system, immensely attracting, regulating and controlling others under the slaving principle. and thus the analysis provides a nonlinear approach to the needham ' s problem

    對于任何思想文化傳統而言,其形成和延續都有其現實的物質生活的根源,因而,對于科技文化的產生和發展,我們能夠返回到其發生的原點? ?即地理氣候等初始條件,從認知主體的隨機性對初始狀態的敏感性方面,視其為科技文化產生的內漲落因素,考察其對科技文化形成的影響;而一種文化之所以稱其為文化,必有其全局控制力的核因素,科技文化是在社會各子系統非性的相互作用下形成,其核因素所發揮的作用就如同序參量在自組織系統的作用那樣,在支配原理的作用下起著規范、引導和支配等效用。
  9. If you have a choice, use a busy route. special care should be taken during delivery

    如有,應使用繁忙路;而在解款途,更應加倍小
  10. 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,來揭示伴隨擴張和漂變在形成種群遺傳樣式的作用.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呈不斷下降的趨勢,支持了冰河期避難所作為遺傳多樣性的作用; 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
  11. In the system that we have implemented, a flexible technique has been used to easily calibrate a camera. it is well suited for use without specialized knowledge of 3d geometry. the technique only requires the camera to observe a planar pattern shown at a few different orientations

    圍繞這個,本文在眾多的定標方案了一個簡捷精確的定標方案,該方案不需要很精確的實驗室環境,適應性強,只需要在車輛前方任意放置幾幅不同姿態的平面模板即可完成整個在標定工作。
  12. The choice dam type is especial importance, during the designed research of the rock - fill dam, particular under the rock - fill dam with very deeply cover layer, the stress and strain of the middle wall and cutting interpenetration wall of the dam foundation is mostly sensitive, whether the. design of dam is scientific and reasonable, it is very important for cutting interpenetration and stability of the dam, the article offer the reference for the design of cutting interpenetration in the foundation with deep cover with earth the water conservancy in xiaban zone, based on the study and analysis the design of cutting seep in the foundation with deep cover with earth, cutting interpenetration concrete wall and the joining model of cutting interpenetration material in body of dam and the applying effect in the practical worko based on the foundation which absorbed and summarize the achievement of design and research in the inter and outer country, for the project of the clay vertical middle wall and vertical cutting interpenetration, the asphalt concrete vertical middle wall and vertical cutting interpenetration the clay inclined middle wall and the lever carpet layer cutting interpenetration, respectively in terms of the different stage of complete period sluice period and working condition, adopting nonlinear calculate and analysis with the finite element method ; carrying the analysis and study with the 3d finite element method as to the different joining model of the left bank high slope cutting interpenetration body and the foundation concert cutting interpenetration wall ; carrying the analysis and study with the 3d finite element method as to the effect of the wall stress and strain because of the different elasticity modulus of the concert cutting interpenetration wall through the analysis and study with the different project. have comparatively all - around comprehended the various model dam, particular the distribute rule of stress and strain of the cutting interpenetration system, provide for the important evidence of the plastic area size the join model of the foundation cutting interpenetrate wall and dam body cutting interpenetrate system the choice of the dam model and the design of the structure of the dam body, the result of research and advice have very importance value in design and building for the similarity project

    工程設計,壩型的取顯得尤為重要,特別對于壩基有深厚覆蓋層的堆石壩,墻和壩基防滲墻的應力和變形是壩體、壩基最敏感的部位,設計方案是否安全、科學和合理,對大壩防滲和穩定起到至觀重要的作用。本文研究分析了國內外深厚覆蓋層基礎防滲設計、壩基混凝土防滲墻與壩體防滲體銜接形式及工程實際應用效果,為下坂地水利樞紐工程深厚覆蓋層基礎防滲設計的方案提供了參考;在吸收和歸納了國內外堆石壩的設計研究成果的基礎上,對粘土墻和壩基垂直防滲方案、瀝青混凝土墻和壩基垂直防滲方案以及粘土斜墻和壩基水平鋪蓋防滲方案,分別按竣工期和蓄水運行期的不同工作情況進行了有限元非性計算分析;對左岸高陡邊坡的大壩防滲體與基礎混凝土防滲墻的不同結合型式進行了三維有限元靜力計算分析和研究;對混凝土防滲墻不同彈性模量對墻體應力和變位的影響進行了三維有限元靜力計算分析和研究。通過對不同方案的計算分析和研究,比較全面的了解了各方案壩體,尤其是防滲體的應力和變形分佈規律,為壩型、壩體結構設計、基礎防滲墻與壩體防滲體的結合型式以及塑性區大小的確定提供了重要依據。
  13. It was also investigated and analysed on the styles of cross section in road green space, the rate of green space, the kind of green space, the quantity of plant spaces in green space, the format of planting. on the base of these, the planning designs of road green space in the blocks of heze city were also studied in combination with the practical situation which the city of heze were building to be a plain - plantation city with the flowers and water. the main results were as follows : 1. there were some problems about road green space in blocks of heze city, which were detected and researched. ( 1 ) the rate of road green space was low and the styles of cross sectionin road green space were simple

    本研究以菏澤城區道路綠地及街頭綠地為研究對象,對其綠地斷面形式、綠地率、綠地類型、綠地植物種類、數量、種植形式等現狀進行了全面的調查和分析,在此基礎上,結合菏澤近年創建以「花城水邑」為依託的平原森林城市建設的實際,對菏澤城區道路綠地規劃設計進行了研究,主要結果如下: 1 .菏澤城區道路綠地存在以下問題: ( 1 )道路綠地率低,綠地斷面布置形式單一,島面積偏小; ( 2 )植物種類少,景觀效果差; ( 3 )植物配置形式單一,地方特徵不突出; ( 4 )某些植物不當,如遮陰功能差,影響交通安全等; ( 5 )行道樹與架空存在矛盾,影響樹木生長,景觀效果差; 2 .根據荷澤實際情況進行了城區道路綠地規劃設計研究: ( 1 )提出了菏澤城區道路綠地規劃設計的依據、原則、總體布局、布局形式。
  14. B management procedures can be deleted directly by the 3, the software is simple and easy to use : handcuffs, application by the end of the menu can be closed useless files and transfer memory superfluous thread, through the installation of the signs option to check with the trash can directly choose to delete, delete the software in the analysis of these documents can be useful, so we do not have to worry about the deletion of useful documents, a bugs, the software can not understand this game cmr2005 part of the procedure documents, as garbage, if you install this procedure, please have your attention the original english software, and so on

    3使用說明:軟體簡單容易上手,通過菜單可以結束應用程序關閉調入內存的無用文檔以及多餘的程,通過安裝項查看帶有垃圾桶標志的項目,可以直接刪除,軟體在刪除的時候可以分析這些文件是否有用,所以不用擔刪除了有用的文件,一個bug ,軟體不能認識cmr2005這個游戲的部分程序文件,會作為垃圾處理,如果您安裝有這個程序,請您注意原版英文軟體就是如此,並非漢化和優化才出現的。
  15. The great tour purchasing power is the drive power of promoting the region ' s tourism developmentln the regional space, scale economic and regional separation are one of the basic characteristics of promoting tourism industry, so we must arrange the regional tourism industry with a systematic method and give prominence to the central city. for its outstanding area in the regional space, central city has evident superiority in the regional ecnomic development, and has echelon between central city and its periphery scennic spots, which is the inducement mechanism of tourism industry ' s arranging, developing and advancing step by step. for the law of diminishing marginal utility and the theory of equilibrium, the max utility equilibrium of tourism consumption be at the point of tangency of undiscrepancy curve and the cost budget curve

    城市居民巨大的出遊力是拉動其周邊旅遊地發展重要的內在驅動力;由於地緣關系,區域規模經濟與地域分割並存,是旅遊產業運動的一個基本特徵,為此必須對區域旅遊經濟進行系統化布局,突出城市的產業性;因其區位條件獨特,城市在區域經濟發展居於明顯的優勢,與周邊城鄉部位存在經濟發展上的梯次性,這種梯次性是區域旅遊生產力布局、產業發展梯次傳動,最終整體聯動的經濟誘導機制;根據邊際效用遞減規律和旅遊者最大效用均衡理論,旅遊消費效用最大化的均衡在無差異曲與開支預算的切點(即旅遊目的地的最佳位置)上,且隨著邊際效用遞減,目的地的最佳位置向遠離城市方向移動,這就是城市與周邊旅遊地互動關系的經濟學解釋。
  16. Beijing guohong hotel, a modern international standard commercial tourism hotel, is overall managed by beijing new jinglun international hotel management co., ltd. the hotel is located to the south of muxidi overpass, in the commercial political center of beijing, with the famous west chang an avenue nearby and neighboring to the beautiful kun yu river

    她坐落於北京西長安街,木樨地橋南,美麗的昆玉河畔。地處北京優越的商政,四通八達的公交和地鐵路?您提供便利快捷的出行條件,是會議商務及旅遊客人的理想
  17. And more than 70 % hardware are tested during microcode self - test since the execution of micro program can cover other data paths. boundary scan is designed according to ieee1149. 1, and some other instructions such as degug, runbist are provided to support internal fault testing, online debugging and built - in self - test besides the several necessary insructions. internal scan is implemented by partial scan, through this the boundary of logic component and user - cared system registers can be selected to be scanned

    Bist用於測試cpu的微碼rom ,其它ram則利用微碼rom的微程序進行測試,而微程序的運行則可以順帶覆蓋其它數據通路,從而使高達70 %的硬體得到測試;邊界掃描按ieee1149 . 1標準設計,除必備的幾條邊界掃描指令外,還提供了debug 、 runbist等指令以支持內部故障測試、在調試及內建自測試;內部掃描採用部分掃描策略,邏輯部件的邊界及用戶關的系統寄存器進行掃描,從而實現了硬體邏輯劃分,方便了后續的測試碼產生和故障模擬,並為在調試打下了基礎。
  18. Take the core part in the design of double cycloidal steel ball reducer - the parametric equation of tooth profile curve of cycloidal groove - as the mainline ; an analysis has been carried out on the main designing parameters of tooth profile curve of this novel reducer and the selection principle of each parameter in the design of this kind of reducer was obtained

    摘要以雙擺鋼球減速器設計的核部分擺槽齒廓曲的參數方程為主,對這一新型減速器齒廊曲的主要設計參數進行了分析,得出了各參數在這種減速器設計原則。
  19. This paper adopts a line space model to examine the optimal location of a shopping mall under mill pricing and uniform pricing and to compare the effects of he pricing policies on price, output, profit, and welfare

    摘要本文利用一個兩市場分別位於直之兩端點的性空間模型,討論在單一出廠價格及單一運送價格二種訂價制度下,購物之廠址,並比較此二種訂價制度下之價格、銷售量、利潤及福利。
  20. There is a linear relation of the logarithm between the pressure difference in round seepage flow region and the radius, for the same accuracy, it is better to select a center mesh grid that is a isometry system with inr interval

    模型離散化時必須滿足流量、體積守恆。圓形滲流區域內的壓力差隨半徑是對數的性關系,為保證相同計算精度,對lnr來說等距的網格系統。
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