first stage concrete 中文意思是什麼

first stage concrete 解釋
第一期混凝土
  • first : adj 1 最初的，最早的。2 最上等的，第一流的。3 基本的，概要的。4 高音（調）的。n 1 最初，第一；第...
  • stage : n 1 講臺；舞臺；戲院，劇場；〈the stage〉戲劇，戲劇藝術；戲劇文學；〈the stage〉戲劇業；劇壇。2 ...
  • concrete : adj 1 具體的，有形的；實在的，實際的。2 固結成的，混凝土製的。3 圖案詩歌的（參閱concrete poetry）...
  1. First, the thesis gives a detailed analysis about the causes and expressions of the medium and small - sized enterprises financing problems, concerning the relationship between banks and enterprises enterprises status, related policy and finance service etc. then, in order to solve the financial problems effectively during the developing process of the medium and small sized enterprises, on the basis of the development stage, concrete environment and characteristics of the medium and small sized enterprises in our country, the thesis gives relevant suggestions about the improvement of enterprises " inside financial environment channel expansion of the indirect f inane ing, more emphasis on direct financing trend of the state ' s policy and innovation of financial instruments etc. at last, in order to welcome the coming technology economy, the thesis especially analyze how to use the capital from at home and abroad to develop risk investment, to ease up the contradiction of capital supply and demand, and to support the fast development of the hi - tech medium and small - sized enterprises

    然後，為有效解決中小企業發展中遇到的資金問題，根據我國中小企業所處的發展階段、具體環境和自身特點，結合我國金融市場的現狀和未來發展趨勢，從改善企業內源融資條件、拓展間接融資渠道、注重直接融資手段、國家政策取向、金融工具創新等方面，提出相應的對策建議。為迎接知識經濟的到來，本文還特別探討了利用國際、國內資金發展風險投資業務，緩解我國高科技中小企業資金需求與供給的矛盾，支持高科技中小企業快速發展的措施。本文試圖通過對中小企業融資問題的研究，探索我國中小企業特別足高科技中小企業發展面臨的一些共性問題，為我國中小企業融資方式和融資體制的改革略陳管見。
  2. To avoid manual labor of chiseling - grossness, in the area of second - stage concrete construction, permanently non - removed metal molding boards nets are used as molding boards of first - stage concrete. substitution joints of reinforcing steel bars for traditional electric welding and usage of equipments for joints of reinforcing steel bars efficiently improve strength of junctions and rate of connecting reinforcing steel bars, and safety of construction and stability of quality, and greatly reduce cost. it ' s possible that three gorges project become top - ranking project in the world by study on systems engineering of high - strength concrete construction

    混凝土縫面處理採用高壓水流沖毛技術，大大提高了施工工效，減少了倉面污染；模板工程大量採用定型鋼模板施工技術，提高了壩體混凝土成型質量和工程進度；在二期混凝土施工區域，為免除人工鑿毛勞動強度，採用永久性免拆金屬模板網作為一期混凝土模板；鋼筋連接改進傳統的電焊連接方式，採用大量採用鋼筋接頭機械連接技術，有效提高了接頭強度和鋼筋連接速度，施工安全性大大加強，質量穩定性有效提高，經濟成本大大降低；三峽二期工程持續高強度混凝土施工系統工程的研究，使三峽工程成為名符其實的「世界一流工程」成為可能；三峽二期工程混凝土溫控綜合技術的應用，有效降低了壩體混凝土溫度的產生；混凝土表面處理及裂縫處理技術的應用，提高了建築物的整體性和耐久性。
  3. Through the research and analysis on the three aspects concerning the base interface of the pavement panel, crack accumulation, expansion in the pavement panel and interaction between spring plates on the road surface as well as its damage on the road fatigue, it is first brought forth that the process of fissures and breakage in the cement concrete pavement can be divided into three stages, i. e. stage of initial crack formation and damage in the bottom of the pavement slab, stage of accumulation, intensifying & expansion in ruptures from load during the time of use and stage of fissures & breakage in the pavement

    通過對路面板底界面開裂、路面板中裂縫積聚、擴展和路面表面車板相互作用及其對路面疲勞破壞的影響等三個層面的研究和分析，首次提出水泥混凝土路面的開裂和破壞過程可以分為三個階段，即路面板底初始損傷西南交通大學博士研究生學位論文第11頁和早期裂縫的形成階段、使用期間荷載作用對路面造成的開裂損傷累計、加劇和裂縫擴展階段以及路面斷裂破壞階段。
  4. Based on the experimental results, in concrete limitation stress sandwich first stage ' s ability and one - way and two - way precast slabs sandwich, results content code require - second class crack control. resistant crack calculation is appropriate. because post - tensioned prestressed advances plane ' s resistant crack. deformation and section strain measure accord with calculation results, this indicates 3d - gridding beams modulus is reasonable to precast slabs sandwich

    本文通過對試驗數據的分析總結，認為：單塊夾層板第一受力階段的性能試驗及單向和雙向裝配整體式夾層板的性能試驗，滿足《混凝土結構規范》 （ gb50010 - 2002 ）中關于預應力樓板的二級裂縫控制等級的要求，抗裂設計得當；由於板縫無粘結預應力筋的存在提高了板的抗裂性。
  5. By using the finite element numerical simulating method, and studies based on the practical project xiluodu arch dam, this paper studies systematically the type of joints, placing temperature, protection methods on the surface of concrete dams, the first stage artificial cooling method including different cooling water temperatures, cooling lasting days and cooling pipes arrangement

    本文利用數值模擬計算方法，以溪洛渡實際工程為依託，對大體積混凝土施工中常採用的溫控措施對混凝土溫度變化的影響規律進行了全面系統的研究，包括分縫分塊方式、澆築溫度、混凝土間歇時間、一期冷卻方式（包括不同進水溫度、不同水管布置、不同通水時間）等。
  6. Abstract : a brief introduction to scientific research in the three gorges project ( tgp ) and the applications of research achievements is given, which include treatment of newly slited layer on the foundation of the first stage earth - rock cofferdam, dumping bottom technique of river closure in deep water, construction of cut - off walls in the second stage earth - rock cofferdams, 3 - d computer simulation of river closure, concrete casting alternatives and selection of major construction equipment for the second stage construction optimization of durability of raw materials of concrete, deep sliding resistance and stability of the intake dam section, the section of the intake of the power station, the intake penstock of the power station, layout and hydraulics problems of shiplocks, stability of high slopes of shiplocks, and optimization of the system structural anchor bars to reduce the risk of cracking in the concrete wall and 700mw turbine generator units

    文摘:介紹三峽工程的科研項目，綜述三峽工程開工以來的主要科研成果及工程應用情況，包括：一期土石圍堰基礎處理與施工技術；大江截流上下游土石圍堰平拋墊底研究；二期圍堰防滲工程研究；大江截流計算機科學管理；大壩混凝土澆築方案及主要施工機械選型；混凝土的原材料和耐久性優化試驗研究；大壩基礎深層抗滑穩定研究；三峽電站進水口型式研究；鋼襯鋼筋混凝土引水管道研究；蝸殼打壓、廠壩間伸縮節問題研究；永久船閘的引航道布置、輸水系統及水力學、高邊坡穩定、混凝土襯砌墻的結構與支護研究；特大型水輪發電機組的科學研究。
  7. A brief introduction to scientific research in the three gorges project ( tgp ) and the applications of research achievements is given, which include treatment of newly slited layer on the foundation of the first stage earth - rock cofferdam, dumping bottom technique of river closure in deep water, construction of cut - off walls in the second stage earth - rock cofferdams, 3 - d computer simulation of river closure, concrete casting alternatives and selection of major construction equipment for the second stage construction optimization of durability of raw materials of concrete, deep sliding resistance and stability of the intake dam section, the section of the intake of the power station, the intake penstock of the power station, layout and hydraulics problems of shiplocks, stability of high slopes of shiplocks, and optimization of the system structural anchor bars to reduce the risk of cracking in the concrete wall and 700mw turbine generator units

    介紹三峽工程的科研項目，綜述三峽工程開工以來的主要科研成果及工程應用情況，包括：一期土石圍堰基礎處理與施工技術；大江截流上下游土石圍堰平拋墊底研究；二期圍堰防滲工程研究；大江截流計算機科學管理；大壩混凝土澆築方案及主要施工機械選型；混凝土的原材料和耐久性優化試驗研究；大壩基礎深層抗滑穩定研究；三峽電站進水口型式研究；鋼襯鋼筋混凝土引水管道研究；蝸殼打壓、廠壩間伸縮節問題研究；永久船閘的引航道布置、輸水系統及水力學、高邊坡穩定、混凝土襯砌墻的結構與支護研究；特大型水輪發電機組的科學研究。
  8. Early age cracking of concrete has re - emerged as an important issue all over the world in recent years. the stress, due to restrained volume change related to thermal deformation and shrinkage in the early age concrete, is the main driving force for the deleterious cracking in the construction stage. during the development of the stress, creep, a very important property of concrete, is always developing. creep contributes to 40 ? - 50 ? reduction of the elastically induced stress in the restrained specimen. ring test, a qualitative test, can provide information to assess the potential for cracking of different concrete. an overview of ring test developed in recent years and mechanism of uniaxial tensile creep test is described in this paper at first. then, an innovative test equipment based on ring test is outlined

    近年來混凝土早期裂縫問題再次引起全球工程界的廣泛關注.早期混凝土由於體積變形受到約束而產生的應力是導致混凝土開裂的主要因素.在混凝土應力發展的同時，混凝土徐變也在同時發生著變化.有研究表明，徐變能減少40 ? - 50 ?的早期應力.圓環試驗是用於定性評價混凝土材料抗裂性能的試驗方法之一.本文首先分析了圓環試驗和單軸拉伸徐變試驗的原理，創造性地將圓環試驗用於測量早期混凝土的干縮徐變，並設計了試驗方案
  9. In the end, the steel - reinforced concrete arched bridge ( chun ' an weiping bridge ), which span is 198m, is analyzed by the proposed three - dimensional nonlinear finite element method and also those gained conclusions are directly adopted in the computation. the universal stability coefficient and nonlinear buckling stability coefficient of the bridge are respectively computed, in which the dead load and the live load are assembled according to the criterion. on the other side, the regularities of creep deformation and subsidiary stress of the investigated bridge under the first - stage dead load are carefully researched

    最後，將本文所提出的三維非線性分析方法及其主要研究成果直接應用於198m跨勁型骨架式鋼管混凝土拱橋「淳安威坪大橋」的分析計算中，對該橋在最不利恆載和活載組合下的一般特徵值失穩系數和非線性屈曲系數進行了對比研究，並對一期恆載長期作用下該橋的徐變變形、附加應力以及截面應力、應變重分佈規律分別進行了深入研究。
  10. This article includes four parts : part 1 makes a brief introduction of constructivism and interprets the viewpoint on learning and teaching in view of it ; part 2 analyses the structure of mental representation of mathematics concept and troubles which students usually meet ; part 3 elaborates the different way to obtain mathematics concept in initial stage and deepening stage ; part 4, at first, elaborates how to instruct the students to construct correct mental representation in view of constructivism, then illustrates how to engage in concrete practice on the teaching of mathematics concept by means of an example ( the teaching of reasonable number )

    全文共分四大部分：第一部分簡單地介紹了建構主義理論，以及在建構主義觀點下的學習觀和教學觀；第二部分從四個材料出發，分析數學概念的心理表徵的結構，以及學生所建立的認知結構中普遍存在的問題；第三部分闡述學生形成的數學概念在初識階段和深化階段不同的獲得方式；第四部分首先闡述在建構主義觀點下如何去指導學生建立正確的心理表徵，然後通過一個教學範例（有理數的教學）說明在建構主義觀點下如何去進行數學概念的教學實踐。
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