正斷面 的英文怎麼說

中文拼音 [zhēngduànmiàn]
正斷面 英文
normal cross section
  • 正 : 正名詞（正月） the first month of the lunar year; the first moon
  • 斷 : Ⅰ動詞1 （分成段） break; snap 2 （斷絕;隔斷） break off; cut off; stop 3 （戒除） give up; abstai...
  • 面 : Ⅰ名詞1 （頭的前部; 臉） face 2 （物體的表面） surface; top 3 （外露的一層或正面） outside; the ri...
  • 斷面 : section; fracture surface; plane of fracture
  1. Study on the thin sectional anatomy and normal ultrasonogram of the adrenal glands on the coronal plane

    腎上腺的冠狀薄層斷面解剖及正常聲像圖研究
  2. Lying in the east of heilongjiang province, yishu graben is a cenozoic fault basin comprising two large second - class structural units, i. e., tangyuan and fangzheng fault basins

    摘要依舒地塹位於黑龍江省東部，為新生代斷陷盆地，湯原斷陷和方正斷陷為其兩個面積較大的二級構造單元。
  3. For hoods with shutters in four sides, the results show : 1 ) the hoods positively placed boards are called hoods used for venting airflow ; hoods negatively placed boards are called hoods used for leading airflow ; 2 ) among the hoods used for venting airflow, the most effective hoods should have positive declining angle value of 30, the ratio 4 of areas between the four windward faces and the gular section ( fy / fj = 4 ), the value of b range from 70 mm to 120 mm and the value of b / h range from 0. 5 to 0. 6 ; 3 ) the most effective hoods should have negative declining angle value of 60, the ratio 4 of areas between the four windward faces and the gular section ( fy / fj = 4 ), the value of b range from 100 mm to 170 mm ( the optimum value is 120 mm ) and the value of b / h range from 1. 4 to 2. 2 ( the optimum value is 2. 0 )

    對於四面設百葉型風帽，計算表明: l ）正裝傾斜擋板的百葉型風帽可認為是排風型風帽，倒裝擋板傾斜的百葉型風帽可認為是進風型風帽; 2 ）排風型風帽中，擋板正裝30 」 、風帽四個迎風面的有效面積fy和風管凈斷面積fj的比值（ fy腸）為4 、擋板寬度b在70inln到120inln之間、板間距比值隴在0 . 5到0 . 6的百葉型風帽排風效果最好; 3 ）進風型風帽中，擋板倒裝裝60 「 、風帽四個迎風面的有效面積和風管凈斷面積的比值（ fy例）為4 、擋板寬度b在100咖到170mm之間（ 120mm為最佳） 、板間距比值隴在1 . 4到2 . 0的進風型風帽（ b爪= 2 . 0為最佳）的百葉型風帽進效果最好。
  4. Cross - section design of a controllable hypersonic inlet. the research is being done at the nanjing university of aeronautics and astronautics

    南京航空航天大學正在進行一個可控高超音速進氣道斷面設計研究。
  5. Through checking computations, it was shown that the analogue accuracy of the model was quite high, which can provide important basis for scientific decision - making on engineering measures. through analogue calculation and analysis of many regulation schemes, it was shown that combining the diversion weir works with the bed fixing works at the south branch is reasonable and feasible in the implementation of loushuikouzi river regulation works. in addition, it is suggested that the bed fixing works at the south branch should adopt the improved compound section scheme

    經對多個整治方案的模擬計算與分析，表明漏水口子河道整治採用分流魚嘴工程和南汊固床工程相結合的整治工程措施是合理可行的，通過模型計算研究還提出了南汊固床工程採用復式斷面形式的改進方案建議，該方案保證了南汊枯期通航和不斷流，而且對南汊及撫遠鎮的保護具有正面作用。
  6. Normally small diameter sections produced by unredrawing have inferior properties with an apparently reduced extension at failure.

    在正常情況下，拉絲做成的小直徑斷面具有破壞時伸長顯著減少的不良性質。
  7. Different tectonic style exists in the upper and lower layers of the yanshanian boundary. the lower layers takes on the tectonic style of thrust fault and nappel. the upper layers hi step positive fault

    2 、盆地燕山期構造界面上下不同構造層具有完全不同的構造樣式，構造界面下伏構造層呈現沖斷褶皺、推覆構造樣式，構造界面上覆構造樣式為階梯狀正斷層，整體呈現「雙層」結構型式。
  8. For the reasons of accumulated soils and sands and the amount of precipitation, the volume in the reservoir is dynamic. if the volume in the reservoir is not dispatched correctly, it will result in the overflowing of the dam bank of the reservoir, even in the collapsing of the darn

    庫容又是水庫調度不可忽視的問題，而庫容又與水庫的橫、縱斷面、水位、水深有關，由於泥沙淤積、降水量多少等原因，水庫水量是動態的，不對水庫水量正確調度，會在大洪水時，造成水庫堤壩漫溢甚至垮壩。
  9. In this thesis, first, reasons and factors for the stability of loose rock dams were summarized according to the field surveys and certain expert ' s experiences. then, researches on block stability problems were reviewed, and according to the relationship between grain size and incipient velocity, it is found that the block weight is in direct proportion to 6 - 9 power of incipient velocity, and 50 % increase of the velocity will result in about 40 times change of the block weight. after that, experiments were conducted in a flume, focusing on the relationship between incipient velocity and some main factors including block weight, water depth over the dam, cross - section size, block material and river bed material

    本文首先根據散拋石壩損毀情況的現場調查資料，結合有關專家多年的整治經驗，總結出壩體的損毀原因及影響因素；對現有塊體穩定性的研究成果進行回顧和總結，並針對散拋石壩的直接損毀現象，結合山區河流的水流、地形特點，利用塊體粒徑與起動流速的關系，提出塊體穩定重量與起動流速高次方成正比的概念，流速50的增長可能導致塊體穩定重量接近40倍的變化；通過二維變坡水槽試驗，研究了壩體穩定的主要影響因素，包括塊體重量、壩頂水深、斷面尺寸、塊體材料（塊石和卵石兩種） 、護底等，結果表明對于山區河流，試圖僅僅通過增加壩體單個塊體重量或斷面尺寸來提高壩體穩定性效果甚微；最後，根據西部地區的自然、經濟、交通等條件，提出可以採用柔性混凝土鉸鏈體等一類整體性較好的護面層作為散拋石壩的防沖毀措施，以期取得良好的工程效果。
  10. Five aspects, such as the highest temperature in the middle of block, maximum horizontal stress, average stresses of any sections, stress changing process of typical points, and stress changing range between tension and compression, are discussed in detail

    從各塊體中部最高溫度、最大水平約束應力、斷面平均水平約束應力、典型點應力發展過程、正反向應力變幅等5個方面，比較系統地闡述了大體積混凝土通倉澆築問題。
  11. Based on the cross - sectional velocity distribution of flow in natural river, computation expression for correction coefficient of kinetic energy is derived

    然後根據天然河流橫斷面流速分佈公式，推導了能量方程中動能修正系數的計算公式。
  12. The usual measuring method, that is, to use the water temperature of 1 meter under water surface to adjust the spinning speed of the sounding device, will result in greater measuring errors. this article put forwards the mathematical model of water temperature with the vertical water temperature that was measured at the deepest site of six sections. after adjusting the sounding device w

    本文依據實測的6個斷面深泡點處的垂線水溫建立了水溫輔助測深數學模型，依據該模型即可得到保證回聲儀測深精度的水溫值，用該水溫值校正回聲儀后，便可得到斷面對應于各起點距處的水深值，從而解決了丹江水庫三維模型建立的關鍵問題。
  13. The 3d model needs three parameters, among them, the distance from the dam and the distance from the starting point of the section can be measured directly, and the depth of the water corresponding to the distance from the starting point of the section can be measured by the sounding device. however, because the reservoir is very deep, the measuring error of the water depth is greater

    而建立其三維模型需要三個參量，其中距壩里程、備斷面起點距可直接測得，而對應于各起點距的水深值因丹江口水庫較深，按通常的方法使用回聲儀測深，即以水下二米處的水溫校正回聲儀的轉速來測深有較大誤差。
  14. After column form installation, overall inspection and aligning shall be done for the cross dimension, axis, elevation and verticality, and then connect each column “ 井 ” shape rack as overall stable structure

    柱模安裝基本完畢后對斷面尺寸、軸線、標高、垂直度等進行全面檢查校正後再進行固定，並將各柱井字架之間連成一體，形成穩定整體結構。
  15. On the railway line nuder normal major repair cycle, rm - 80 full section undercutting ballast cleaning machine has enough excavation ability in working condition, productivity can come up with it ' s design standard

    對于正常大修周期的線路上， rm80型全斷面道碴清篩機作業運行工況具有足夠的挖掘能力，作業效率基本上能夠達到其設計標準，這些在國外已經得到了充分的證明。
  16. Actually correction coefficient of kinetic energy reflects the non - uniform characteristics of cross - sectional velocity in natural rivers. it is related with hydraulic parameters and can be expressed by chezy ' s coefficient. the larger the resistance of boundary, the more non - uniform the distribution of cross - sectional velocity

    動能修正系數實際上反映了河道橫斷面流速分佈的不均勻性，與斷面的水力要素有關，可用謝才系數c來表示，水流所受的阻力越大，邊界對其影響也就越大，流速分佈愈不均勻，導致動能修正系數增大。
  17. Abstract : in this paper, we develop a lofting method for railway tunnel profile including straight way and curve way, analyse carefully the error resources of lofting, and move an amendment one by one, precision analysis to the amended lofting formula shows that the lofting precision is up to scheduled standard

    文摘:提出了鐵路隧道斷面（包括直道、彎道和坡度）的放樣掃描方法，詳細分析了放樣掃描的誤差來源，並逐一給出了修正方案，對修正後的放樣公式作了精度分析，放樣精度達到了預定的要求。
  18. A s t he main c ontent o f a r esearch p reject funded b y t he national natural science foundation of china ( nsfc ), the dissertation studied many aspects on construction industry, and delivered the following results : 1. the dissertation firstly makes a theoretical analysis on the general rule of construction growth, followed by an empirical test on the data of 34 countries in different development stages. this cross - sectional analysis and regression model investigate the relationship between the share of construction value - added ( cva ) in gross domestic product ( gdp ) and gdp per capita

    在對建築業的成長一般規律進行理論分析的基礎上，利用34個處于不同發展時期國家的橫斷面數據，回歸模擬出建築業增加值在gdp中所佔比重與人均gdp的關系，結果發現：建築業增加值在gdp中的比重隨人均gdp增長而呈現三次曲線關系，先上升，後下降，然後隨人均gdp增長還有可能繼續上升；第一次達到的正常情況頂點位置的產值比重（產業增加值gdp ）為7 . 28 ，中國建築業正處在向這一頂點攀升的過程中。
  19. Some special subsemigroups of regular semigroups with an inverse transversal was discussed. these subsemigroups play a decisive role in constructing regular semigroups with an inverse transversal

    摘要討論了具有逆斷面的正則半群的一些特殊子半群。這些子半群在構造具有逆斷面的正則半群中起決定性作用。
  20. The correction factor of the pressure of cross section before a hydraulic jump in stilling basins under nappe flow of stepped spillways

    跌落水流時臺階式溢洪道消力池躍前斷面壓力修正系數
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