central sphere 中文意思是什麼
central sphere
解釋
中心球-
Metropolitan circle is the result of industrialization and urbanization, which is the embodiment of centralization and radialization when the metropolis is developing to a certainty, in order to advance the space and economy to conform, to form a corporate area, fabricating the new type of metropolitan circle in which the metropolis is the core is new topic for discussion of innovative space structure of the big ciry this paper combine the theory expatiation and demonstration analysis with comprehensive and new statistics data, and theory model, and discusses the all - around regional development in chengdu area from a new angle, ie : using space structure model of metropolitan circle to develop the overall enhancement of strength in chengdu first, the thesis defmitudes the concept, connotation, and character of metropolitan circle, after that, it discusses the formative mechanism of metropolitan circle from the factors such as market, institution and ect moreover, from the practice of metropolitan circle ' s development in ho me and abroad, it summarizes the significance of the metropolitan circle form for the economic and social development, as well as the experience for reference and the problems we should pay attention to = based on these theories and practice, it brings forward the necessity and strategic significance of building metropolitan circle in chengdu, and analysis its possibilities, it also makes a research on the model of this circle, it innovatively brings forth that the double - polar circle structure of central city - sub central city - satellite town should be builded, through the establishment of index system, the sphere of metropolis circle in chengdu can be set which means the central city, sub center city and satellite town are sett it also analysis how to determine the gravity between center city and circumjacent area, and discusses the function orientation of center city and satellite town at last, it briefly analyses the transportation designing of suburb and city which are imperative for constructing the metropolitan circle in chengdu
本文將理論闡述和經驗實證分析與較全面的最新統計資料，以及理論分析模型分析結合起來，從新的角度深入探討成都的區域整體發展，即以都市圈的空間結構模式促進成都整體實力的全面提高。本論文首先明確了都市圈的概念、內涵及特徵，從市場、等因素探討了都市圈的形成機理，並從國內外都市圈的發展實踐中，總結出都市圈這種空間形式所引起的經濟和社會發展的意義所在，以及我們值得借鑒的經驗和需要注意的問題。在此理論和實踐基礎上，提出構建成都都市圈的必要性及戰略意義，分析其可能性；並且對如何構建成都都市圈模式進行了探討，主要是創新性提出構建中心城市-副中心城市-衛星城鎮的雙極圈域結構，並通過指標體系的建立以確定成都都市圈的范圍，即中心城市、副中心城市和衛星城鎮的確定，以及測定中心城市與周邊地區的引力大小，以及對中心城市和衛星城鎮的功能定位進行了探討。 -
Agglomeration economies bring about urban center in the process of urban sprawl. with the formation of centripetal urban rings, the planners of the city make rational adjustments in the distribution of spatial structure of urban areas according to theory of economic rent so that the services of high quality are amassed in the central sphere of the area, which results in the formation of cbd
在城市發展的過程中，由於聚集經濟的作用，出現了城市中心，隨著城市中心的不斷發展，城市中心的各職能在地租? ?承租能力的影響下對城市空間結構進行了重新布局，那些土地利用率高的商務職能及高檔商業服務職能就留在了中心地，使城市中心發展成為cbd 。 -
The enterprise central jewellery co. ( hk ) ltd is well - known and engaged not only in, but also in the specialized industries of its sphere of activity, with complete production, stores, stones and at the same time with fashion, bracelets and stones a competent partner
針對繼電器、中繼站、哲學、夥伴、合作人以及組合式負荷開關（帶熔斷器） 、負荷隔離開關、斷路器、破碎錘、 （混凝土）路面破碎機的報價會引起您的興趣。 -
Especially, when the isocline of x is monotone decreasing in 0 < x < 1, the svstem has no limit cycle and is globally stable ; next, we construct a saddle bifurcation at the boundary equilibrium and a degenerated bogdanov - takens bifurcation at the interior equilibrium by choosing appropriate parameter values in the following two sections, where our work are based on the theory of central manifolds and normal torms. we prove that is a codimention 3 focus - type equilibrium. system ( 6. 1 ) will have two limit cycles at some appropriate bifurcation parameter values, and have homoclinic or double - homoclinic orbits at some other appropriate bifurcation parameter values ; at last, we study the qualitative properties of the system at infinite in the poincare sphere
因為系統在（ 0 ， 0 ）點處沒有定義，這給研究其在（ 0 ， 0 ）附近的動力學性質帶來了困難，我們應用文獻[ 17 ]中關于研究非線性方程奇點的系列理論和方法，圓滿解決了這一問題，給出了第一象限內當t +或t -時，在全參數狀態下系統的軌線趨于（ 0 ， 0 ）點的所有可能情況，其相圖也得以描繪；並且，系統不存在極限環的幾個充分條件我們也予以列出，當x的等傾線在0 x 1范圍內遞減時，系統不存在極限環，全局漸近穩定；然後，我們以中心流形定理和正規型方法為主要工具，巧妙選擇參數，分別構造了一個余維2的鞍點分岔和一個余維3退化bogdanov - takens分岔，證明了平衡點是余維3的焦點型平衡點，存在參數， m ，的值使得系統（ 6 . 1 ）有兩個極限環，還存在參數， m ，的另外值使得系統（ 6 . 1 ）有同宿軌或雙同宿軌。 -
The cardiac plexus, the emotional sphere of the inner voice ( anahata - cakra ), called the source of the heart, situated in the central region of the thorax or chest
心神經叢，內在聲音的情感區域（心輪） ，稱為心臟的來源，位於胸腔的中間附近。 -
Bolted - sphere node is the central part of spatial steel framework. in the process of machining, the factors of quality are several kinds, the numbers of processing path is very large and the real problems are so complex that mass calculation is impossible with hand. we must depend on the powerful calculation ability of computer and the optimal design means
螺栓節點球是網架工程中的關鍵零件，在它的加工過程中，影響其質量的因素是多方面的，加工路徑又十分龐大，實際問題很復雜，要進行大量的計算，用人工計算往往是不可能的，必須藉助計算機強大的計算能力和優化的設計方法來進行。 -
Central asia is russia ' s traditional sphere of influence, and the united states is the hot of central asia
因此，分析俄美中在中亞的競爭與合作具有重要的現實意義。
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