極限測量法 的英文怎麼說

中文拼音 [xiànliáng]
極限測量法 英文
limit gauging
  • : i 名詞1 (頂點; 盡頭) the utmost point; extreme 2 (地球的南北兩端; 磁體的兩端; 電源或電器上電流...
  • : Ⅰ名詞(指定的范圍; 限度) limit; bounds Ⅱ動詞(指定范圍, 不許超過) set a limit; limit; restrict
  • : 動詞1. (測量) survey; fathom; measure 2. (測度; 推測) conjecture; infer
  • : 量動1. (度量) measure 2. (估量) estimate; size up
  • : Ⅰ名詞1 (由國家制定或認可的行為規則的總稱) law 2 (方法; 方式) way; method; mode; means 3 (標...
  • 極限 : 1 (最高的限度) the limit; the maximum; the ultimate limit; limitation; extremity; tipping point...
  • 測量 : measure; survey; gauge; meter; measurement; measuring; surveying; mensuration; metering; gauging;...
  1. Based on extensive investigation of construction technique history of chinese ancient buildings, the structure method, structure developing history and seismic behavior of chinese ancient timber structure buildings are analyzed in several respects of the structural system and form. through a series of experiments on constituent parts of chinese ancient timber building structure, including the tests on the corbels and brackets called dougong subjected to low cyclic reversed loadings, the tests on the wooden frame using the tenon - mortise joints as connections of column and beam subjected to low cyclic reversed loadings, the tests on vibration isolation effect of friction and slippage between column footing and their socle base, and a series of shaking table tests on a chinese ancient timber structure palace building mode under artificial earthquake at serving conditions, destroyed conditions and reinforced conditions, many valuable results of structures such as moment - curvature hysteretic loops of dougong structure and tenon - mortise joints under low cyckc reversed loadings, the static function, the seismic performance, energy dissipation, vibration reduction, energy - loss mechanism, nechanicalmode and failure mode were studied. aplenty of valuable parameters of the structure system were obtained, such as the natural period of structure, vibration modes, damping ratio, factor of vibration isolation, oscillate amplitude of ineitial accebration, velocity and displacement, magnitude of slippage, and the mechanism of structure failure and collapse etc. based on these research, the complete analysis of ancient timber structure under earthquake were carried out in which including mechanism analysis method, calculating mode, strength analysis of members and joints, strengthening methods for serving damaged ancient timber structure buildings were also taken into account

    依照宋代《營造式》建造了抬梁式殿堂木結構構件及結構模型,對中國古代木結構中的典型構造如:柱腳在礎石頂面平擱簡支、柱架榫卯連接、柱高不越間之廣、側腳、生起、斗拱等的構造機理及結構功能進行了化分析和實驗研究: (一)通過木柱石礎靜摩擦試驗,定了柱腳與石礎古鏡面間的摩擦系數及摩擦力隨上部結構荷載變化的規律; (二)通過單柱承載力試驗,定了古建築中木柱的受力變形特徵、破壞模式、及模型材料的變形模承載力、變形等參; (三)通過柱架低周反復荷載試驗,定了柱架的抗側移剛度、柱架恢復力特性及滯回曲線、榫卯張角剛度及其變化規律、柱架及榫卯的承載力和變形、及榫卯減振參數; (四)通過斗?低周反復荷載試驗和受壓試驗,定了古建築木構件與木構件間摩擦系數,斗?抗側移剛度,斗?恢復力特性及滯回曲線,斗?抗壓承載力及受力變形規律; (五)通過抬梁式殿堂間架模型振動臺試驗,定了殿堂木構架結構自振周期,地震反應振形、阻尼特性及阻尼比;按結構分層特點對柱腳、柱頭和斗?層上的屋蓋的地震反應採用多點同步,對柱根滑移、榫卯變形、斗?的變形、復位、耗能減振參數等進行了定分析。
  2. Standard test method for measuring liquid and solid material fire limits in gaseous oxidants

    氣體氧化劑中液體和固體材料著火的標準試驗方
  3. Method of determining minimum oxygen content concentration for coal dust explosion

    煤塵爆炸氧含定方
  4. This theoretic model employs the basic idea of correlation measurement, achieve the density wave speed by the correlation of the signals of upper and lower sensors, and get the total flow rate and water cut through the theoretic relationship of density wave speed and total flow rate as well as holdup with the help of drift flux model so as to accomplish the oil / water two - phase flow measurement at last, using the limited available experiment data, the theoretic model has been simplified into an applicable linear alternative which is suitable to homogeneous oil / water two - phase flow measurement to accomplish the oil / water two - phase flow measurement using the density wave phenomena is of highly theoretically valuable for density wave theory research as well as oilavater two - phase flow measurement research. to develop new type oil / water two - phase flow instrumentation based on this theoretic measurement method will be very applicable and promising

    在此基礎上,針對穩態密度波理論提出了基於密度波理論的油水兩相流理論模型,該模型以密度波傳播理論作為基礎,通過上下游傳感器信號相關獲得密度波傳播速度,利用密度波傳播速度與總流以及持相率的理論關系結合漂移模型來求解總流和含相率,實現油水兩相流的,在理論分析的基礎上,在實驗資料有的條件下,對基於密度波理論的油水兩相流理論模型作了的簡化,提出了本文油水兩相流理論方應用在均勻油水兩相流中的實用線性模型。
  5. According to the geological data which was gained by exploration investigation, establishing a geological model which can reflect rock mass characteristics ; with analyzing the internal and exterior factors synthetically, the deformation and possible failure mechanism and mode of the cut slopes was confirmed which combines with stereoic projection and other techniques ; the stabilities of the 14 high slopes are estimated synthetically by applicable design codes and guidelines. with the estimate result and some other analysis methods, the rock mass mechanical parameters of slope are identified ; as a results, 14 high slopes fall into 4 categories based on rockmass characteristics and discontinuities. the stability and deformation of some typical slopes was analyzed with distinct element method by udec ; the safety factor of some dangerous slopes are calculated by rigid limiting equilibrium method for comparison

    首先著重研究影響邊坡穩定性的內在因素,主要是通過地質勘探、、現場觀等手段取得研究區地質體的基礎地質資料,建立起能夠反映地質體結構特徵的地質模型;隨后綜合分析潛在的內外部影響因素,並結合赤平投影對邊坡可能的失穩模式或破壞機製作出判斷;運用已有巖體質分類方對沿線14個高陡邊坡穩定性進行初步的評價,並結合試驗研究、經驗判斷、工程類比等手段確定了坡體的巖體力學參數;根據穩定性初步評價結果將研究區14個高陡邊坡按開挖方式分為4大類,並利用離散元程序udec對各類典型高陡邊坡進行了穩定性計算分析;對潛在危險邊坡利用剛體平衡求出了不同工況下的安全系數。
  6. Second, the test report produced by the system is not the standard case report. the purpose of this article is to develop a way to increase the clinical samples per test and design the mis for autodelfia 1235. [ methods ] ( l ) the remain volume in the reagent bottle corresponding of the assay buffer, incubation buffer, eu and ab was obtained by surveying the limited probe position of the right and left dispenser, respectively

    [方]定左右兩個試劑分配器的探位置,獲得各類試劑的最低剩餘;定分析和試配套藥盒各類試劑的實驗用,獲得雙微孔板試各類試劑的實驗配置;定各類試劑瓶的容積,評估雙微孔板試採用單微孔板封裝藥盒的可行性。
  7. This article describes a way of special ultrasonic system which monitors thermal stress in seamless welded rails. this monitoring system is a non destructive testing system, which adopts avr mcu and high - precise time chip processing as the core of it, and adopts the critically refracted longitudinal wave as the object of measuring. my studying focuses on the theory of the monitoring system, which will be listed in this arctile : according to the snell theory, the theory of motivating of critically refracted longitudinal wave is described in details, and the finite element software is used to emulate the propagating course. the formulas of calculating the pts of swr are taken from the acoustoelasticity theory, and the calculating the parameters is introduced. according to assemble materials, three kinds of ways of monitoring the pts of swr using critically refracted longitudinal wave are described, which are measuring the sound - time in changeless distance, ultrasonic critical - angle refractomery and frequency spectrum, the first way of ways is used in this experiment system. the factors, which effect the monitoring system, are assaid in some degree based

    本文的研究工作重點在無縫焊接鋼軌溫度應力系統的理論模塊,包括根據snell原理,研究折射縱波的激發機理,並使用有元軟體ansys進行模擬;根據聲彈性理論以及公式推導出計算無縫焊接鋼軌中的溫度應力的公式,並對其中參數的求解方進行介紹;根據收集的資料,介紹了三種使用折射縱波無縫焊接鋼軌溫度應力的方,即固定距離聲時、臨界角折射和頻譜分析,本實驗系統使用的是第一種;根據實驗經驗以及相關資料,分析了影響折射縱波溫度應力的幾個因素,並提出了相應的解決方;根據實驗系統的需要,獨立設計並加工出相關配套的實驗設備,包括實驗鋼塊、有機玻璃楔塊、固定件、載荷外框裝置等。
  8. The application of conventional approach of measuring the motor ' s parameter is limited seriously because they require some kinds of special operating pattern to measure the parameters

    一般的電機參數需要電機滿足一定的運行條件,因此大的制了其使用范圍。
  9. In the paper, the load incremental method is adopted. by the way of reducing the elastic model of the destructive blocks in the elements, the finite element analysis model is revised and the repeated computing process does n ' t finish until the results are converged. the proposed method can simulate the entire process of concrete structures from crack to complete damage

    分析中採用載荷增,對各級載荷下單元中破壞的材料分塊進行彈模折減處理,並重新生成單元剛度矩陣,經過多次迭代直至計算收斂,從而可以給出各類cfrp加固混凝土結構的載荷?變形全過程曲線,並預承載力。
  10. Ltd. a coupled vibration method on suspended free poles is employed to determine the initial young ' s modulus at elevated temperatures, also the thermal expansion coefficients of fire - resistant steel

    通過高溫下的恆溫加載拉伸試驗,得到不同溫度下耐火鋼的屈服強度、強度、延伸率、面縮率和應力應變關系,並定高溫下耐火鋼的熱膨脹系數,採用懸絲耦合共振定高溫下耐火鋼的初始彈性模
  11. By measuring the distance of orbits, very weak signal can be detected because of the sensitive dependence on initial conditions

    理論上這種精度可以無高,因此它可以用來其微弱的信號。
  12. The core - mantle boundary is the closest researchers can get to the much more intense and complicated magnetic field that exists within the core, where magnetic fluctuations actually originate ; strong electric currents in the core prevent direct measurements of the magnetic field there

    地核內具有更為劇烈、復雜的磁場,而且也是磁場變動的真正發源處,但是研究人員可推算的是在地核?地函交界處;因為地核內的電流強,因此無直接內部的磁場。
  13. This dissertation concentrates on the difficult problems that the pipeline or pipe defects are not estimated or evaluated quantitatively, intelligently by mfl ( magnetic flux leakage ) inspection method. from the practical demand, theoretical analysis and experiments or testing, the mfl inspection technology of pipeline or pipe defects are explained, summarized in detail in the whole paper, at the same time, the relationship between the mfl field distribution, the mfl signal shape and the defect geometry or severity, the analysis of the mfl data and the compensation of influencing the relationship factors, signal feature extraction, intelligent recognition of defect parameters and so on are studied systematically

    論文針對管道(鋼管)缺陷漏磁檢化、智能化的難題,緊密結合檢現場實際需要,通過理論分析和大實驗,系統分析總結了管道(鋼管)缺陷漏磁智能檢技術,並在缺陷漏磁場分佈以及缺陷漏磁信號與缺陷外形參數間的關系、缺陷漏磁信號分析、漏磁信號影響因素補償、缺陷漏磁場波形特徵提取和缺陷外形尺寸定識別等方面進行了深入研究,主要成果和創新如下:引出磁偶子模型近似分析常見缺陷漏磁場,針對磁偶子模型的不足,將有元方應用到缺陷漏磁場分析,實現了常見管道樣本缺陷漏磁場的模擬。
  14. This paper chose ca ^ - p as the index, based on its sensitiveness, stability, representatively and measurability : figured out the endogenesis geographical point of soil phosphorus equilibrium ( of ck treat ) as 3. 2mg / kg, the exogenous geographical points of soil phosphorus equilibrium of - p, 1 / 2p ( p2o5112. 5kg / hm : ) and complete p ( p2o5225kg / hm2 ) as 3. 6 mg / kg, 8. 6 mg / kg, and 14. 2 mg / kg respectively

    本研究根據代表性原則、靈敏性原則、穩定性原則和可度原則,選定ca _ 2 - p作為雄縣土壤磷素地理平衡點的描述指標,根據灰色系統預理論,用數學求的方,得雄縣土壤磷素內源地理平衡點( ck處理)為3 2mg kg , - p 、 1 2p ( p _ 2o _ s112
  15. The demonstration of heat - transfer measuring techniques and prospect of infrared thermal mapping techniques, main parts and performance indexes of a infrared camera, functional blocks and implementation of infrared processing software, experimental facility and measuring system of the wind tunnel has been made. the model emittance was experimentally determined and the three methods correcting directional emittance were compared. those problems of the infinite - slab model thickness and constant wall heat rates hypothesis, the determination of adiabatic wall temperature were discussed in a 1 - d heat conduction analysis

    本文對紅外熱圖熱技術與應用前景、紅外熱像儀主要部件與性能指標、紅外熱數據處理軟體功能模塊與實現、風洞試驗設備與系統等進行了論述,了模型表面發射率並對發射率隨角變化的三種修正方進行了對比,對一維熱傳導分析中模型壁厚半無假設、壁面熱流定常假設、絕熱壁溫選取等進行了探討。
  16. Limits and methods of measurement of radiodisturbance charact ristics of electrical lighting and similar equipment

    電氣照明和類似設備無線電干擾特性的
  17. Based on the gathered data, especially displacement data, statistically analyzing and feed back according to various empirical methods, theoretical norm and fem computation are conducted so as to grasp the rules of deformation and stress of ground and structure, assess the stability of ground and structure as well as determine reasonable support time and parameters, ultimately achieve safety without compromised safety

    根據獲取的信息,尤其是位移信息進行統計分析,依照各種經驗方應變準則,以及有元計算綜合進行反饋,把握重疊隧道採用先上後下多臺階開挖工時圍巖和隧道結構的變形和受力規律,確認圍巖和隧道結構的穩定性,確定合理的支護時機和支護參數,保證施工安全的基礎上追求經濟性。
  18. For instance, extreme programming and test - driven development use some of these metrics to determine the testability of classes and methods

    例如,編程和試驅動開發使用了這些度中的一些來決定類和方的可試性。
  19. This paper, regarding the asphalt pavement in the zhoukou region as the study object, according to the prevalent norms ( specifications for design of highway asphalt pavement ), with the beginning of the pavement performance and the transportation investigation, totally and systematically analyzes the traffic parameters and the destroying reason of pavement at the early stage in the point of fatigue property and limit strength, gives the concepts and methods of the growth rate of equivalent axle load action time, seasonal modification factor and overload factor, proposes the method of axle load conversion on the condition of heavy loading. on this basis, it proposes the design method adapting to asphalt pavement construction, explains the steps of thickness computation of construction with the combination of engineering example, finally verifies thedesign method in the paper by test road. theory and practice both prove that the reasonability of pavement structure style and the reliability of design method in the paper can adapt to the present heavy loading and overloading traffic conditions, have highly theoretical and practical value

    本文以周口地區瀝青路面為研究對象,以現行《公路瀝青路面設計規范》為依據,從路面使用性能和交通特徵的調查入手,從疲勞特性和強度出發分析了路面早期破損的原因,全面系統地進行了交通參數的分析,提出了當軸次增長率、季節修正系數和超載系數的概念和方,並提出了重載交通的軸載換算方。在此基礎上,針對超載、重載交通從結構組合設計、結構厚度計算(包括疲勞強度標準和強度標準)等方面提出了適宜的瀝青路面結構設計方,並結合工程實,說明了結構層厚度計算的具體步驟,最後通過試驗路驗證本文提出的設計方。理論與實踐均表明,本文提出的路面結構型式合理、設計方可靠,能適應目前重載、超載交通的狀況,具有較高理論與實用價值。
  20. Precast concrete products. test method for glass - fibre reinforced cement. part 7 : measurement of extremes of dimensional variations due to moisture content

    預制混凝土產品.玻璃增強混凝土試驗方.第7部分:隨潮濕含尺寸變化
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