four-element 中文意思是什麼

four-element 解釋
四透鏡
  • four : n 1 四人小組；（套在車上的）四匹馬。2 四的記號；（骰子的）四點；（鐘點的）四時；四歲。3 〈pl 〉 ...
  • element : n 1 要素；成分；（構成）部分；分子。2 【化學】元素；【數學】元，素；【機械工程】單元；單體；【無...
  1. Design and realization of four - element microstrip antenna array

    四單元微帶貼片天線陣的設計與實現
  2. This article discussed ar modeling method, capon method, music method and mn method four kinds of high resolution algorithms principle and has separately made the computer simulation in the ideal situation to the above four algorithms. through the comparison, the beam width of high resolution algorithm is much narrower than conventional beamforming method. then unifies the actual utilization, discussed the influence of time delay unbalance, time domain sampling, plane wave supposition and array element with scope and phase not identically to the beamforming and made the computer simulation

    本文首先討論了ar模型法、 capon法、 music法和mn法四種高解析度演算法的原理，在理想的情況下分別對上述四種演算法作了計算機模擬，通過比較，高解析度演算法的束寬比常規波束形成法窄得多;然後結合實際運用時的情況，重點探討了延時失配、時域抽樣、平面波假設和基陣的幅相不一致對波束形成的影響並做了計算機模擬。
  3. The third part, the " ii " part of the dissertation - - - - - - the major historical challenges for the u. s. federal constitution, surveys the four major challenges that the constitution experienced : ( i ) the initial formation of the u. s. constitutional system ; ( ii ) the most dangerous constitutional crisis - - - - - - the civil war : ( iii ) the absorption the biggest new element in constitutional system - - - - - - party politics ; ( iv ) the modern challenge - - - - - - the expansion of the power of the federal government and the inflation of the presidential power

    第三大部分即文章的「二、美國《聯邦憲法》所經歷的重大歷史考驗」 ，對《聯邦憲法》在其歷史中所經受的四大歷史考驗分別進行了考察： （一）美國憲政制度的最初定形， （二）最重大的憲政危機? ? 「內戰」 ， （三）新的最大憲政要素的吸吶? ?政黨政治， （四）現代挑戰? ?聯邦政府權力的擴張和總統權力的膨脹。
  4. Four tem - horn antennas have been made. using these antennas two - element rain gutter tem - horn array, two - element stacked tem - horn array, four - element rain gutter tem - horn array and four - element stacked tem - horn array are been mades up of. the results of experiment accord with theory and numerical stimulation

    最後，對tem喇叭天線陣列進行了原理性實驗研究，設計了帶地板結構的半tem喇叭天線，組成二元槽狀陣列、二元疊狀陣列、四元槽狀陣列、四元疊狀陣列等，應用小信號測試，得到的結果與理論和數值模擬相一致。
  5. A complementary element to this stamp issue is a set of four postage prepaid airmail picture cards

    同時發行的是一套四款郵資已付明信片（空郵） 。
  6. Therefore, it might be said that our position as to the etiology of primary glaucoma, as i conceive it, is that at least four element s may figure in it, two of which are problematical and largely hypothetical, and two of which are certain

    因此，可以這樣說:關于原發性青光眼的病因，據我看來，至少有四個因素:其中有兩個因素是有問題的和多半是假設的，但另兩個因素是肯定的。
  7. Therefore, it might be said that our position as to the etiology of primary glaucoma, as iconceive it, is that at least four element s mayfigure in it, two of which are problematical andlargely hypothetical, and two of which are certain

    因此，可以這樣說:關于原發性青光眼的病因，據我看來，至少有四個因素:其中有兩個因素是有問題的和多半是假設的，但另兩個因素是肯定的。
  8. Element should be mapped to four svg line elements that together draw the radical sign

    元素應該映射成4個svg行元素，共同繪制出根號。
  9. In this paper, the finite - element numerical analysis calculation is applied to the foundation of high - rise and multi - floor building and the evolvement law of stress and displacement of tunnel used by urban traffic to explore the mutual influence between the wall rock of underground space and high - rise building foundation, taking account of the specific construction situation in the " sanmu garden " project in dadukou district in chongqing, from the perspective of underground space static - force structure stability analysis to open a underground tunnel with 6m in span and 7. 5m in height for track traffic 20m below the surface. this paper, taking considerations of three different states, i. e. the natural state without any artificial interference, the state of high - rise buildings on the surface, and the underground tunnel state with excavation for track traffic, and four plane lines and four vertical lines, analyzes and studies the distributing law of stress and displacement of calculation section from the following aspects : ( 1 ) the main stress vectorgraph, displacement distribution graph ( ux, uy ) and chromatogram graph of stress isoline ( 1, 2, xy ) of section under different states ; ( 2 ) the contrastive distribution curve of stress ( 1, 2, xy ) of different plane and vertical lines under the same state ; ( 3 ) the contrastive distribution curve of stress ( 1, 2, xy ) of the same plane and vertical lines under different states, wishing to provide references for underground space utilization and project designing and construction of the tunnel under high - rise buildings in the future

    本文結合重慶市大渡口區「三木花園」開發建設項目，從地下空間靜力結構穩定性分析角度出發，針對在該項目中涉及的高層和多層建築物以及在其地下20米處開挖了一個用於軌道交通的跨度6米，高7 . 5米的地下隧道這一具體工程情況，採用2d - 3d -有限元結構分析程序對高層與多層建築物的地基基礎及其與城市軌道交通使用的地下隧道圍巖的應力與位移演變規律進行了有限元數值分析計算，探索了地下空間圍巖與高層或多層建築物地基基礎之間的相互影響，通過考慮未受到任何人為擾動影響的天然狀態、地表存在多層或高層建築物狀態和地下開挖用於軌道交通的地下隧道狀態等三種不同狀態以及4個水平剖線和4個垂直剖線等不同情況，從以下幾個方面具體分析研究了計算斷面的應力與位移分佈規律： （ 1 ）在各種不同狀態下計算斷面的主應力矢量圖、位移分布圖（ ux 、 uy ）以及應力等值線色譜圖（ _ 1 、 _ 2 、 _ （ xy ） ）等； （ 2 ）相同狀態下不同水平與垂直剖線的應力_ 1 、 _ 2和_ （ xy ）對比分佈曲線； （ 3 ）不同狀態下相同水平或垂直剖線的應力_ 1 、 _ 2和_ （ xy ）的對比分佈曲線等，為今後在對地下空間的開發利用以及在高層建築物地下開挖硐室時的工程設計和工程施工提供參考依據。
  10. Through researching the rhythmic change regularity of ore texture and structure, mineral composition and content, rare element " s change feature and the exploding temperature of mineral inclusion, combining the theory of magmatic ore - forming, the forming process of panzhihua vanadic titano - magnetite deposit could be divided into four periods : rock - forming period, main ore - forming period, hydrothermal period and surficial processing period

    通過對礦石組構、礦物成分及含量、稀土元素變化特徵、礦物包裹體爆裂溫度的韻律式變化規律的研究，結合巖漿成礦理論，將攀枝花釩鈦磁鐵礦礦床的形成過程劃分為四個期：成巖期、主成礦期、熱液期、表生期。
  11. According to finite element segmentation principle, by combining test with observation, the author has measured the air streamline and speed distribution of burning equipment in dally situation, which provides some guide for research of air field in hearth on cold and hot conditions. and the law is found of air speed distribution by measuring its speed and distribution of upper and lower deck on cold condition, thus it lays the foundation for analysis on hot condition. under four burning states, we measure the air speed in single, double - deck, and find out its corresponding distribution law

    5 .根據有限元分割原理布置測點，採用降溫方法，用k五江9106等儀器分別測出單雙爐排燃燒方式4種不同工況下，該燃燒設備爐膛內coz 、 02 、 co氣體濃度，並找到了隨爐膛高度方向及深度方向變化規律;從燃燒原理分析評價了2種燃燒方式爐膛內coz 、 02 、 co氣體濃度場分佈特點及相應燃料層內乾燥、干餾、氧化、還原、灰渣層厚度，肯定了雙層爐排燃燒方式爐膛中c02 、 02 、 co氣體濃度場分佈合理性，從燃燒理論找出了最佳濃度場分佈狀態及燃料層內各反應層厚度。
  12. Another topic of this article is to try to find a proper overlay design method. by using elastic layer system ( els ), finite element method ( fem ), genetic arithmetic ( ga ) back calculation and efficacious thickness method, the paper puts forward four design methods. the results say that the position where the max stress appears is not the only one but varies with the thickness of overlay

    根據陜西省高速公路瀝青路面病害以及使用性能的實際情況，提出了代表彎沉值的計算方法以及下臥層模量的反演方法，在此基礎上利用彈性層狀體系理論、有限單元理論、遺傳演算法以及有效厚度法等理論對加鋪層厚度設計方法進行了研究。
  13. By analyzing the microstructure, the digitized cell model of three - dimensional four - directional composites is established, then the mechanic properties of three - dimensional four - directional composites are calculated by the digitized cell - based finite element method ( dcb - fem ), and the influence of the braiding angle and the fiber volume fraction is discussed

    摘要在確立三維四向編織復合材料數字化單胞力學分析模型的基礎上，運用均勻化方法對三維編織復合材料的等效彈性性能進行了分析計算，並討論了編織角和纖維體積含量對此材料等效彈性性能的影響。
  14. Graphic technology - characterisation data for four - colour - printing - complementary element

    印刷技術.四色印刷用特徵數據.補充元素
  15. The main issues addressed in the following article : a description of a purely objective or subjective unity ; the time required to establish whether a continuity ; whether the establishment of a space for the operations. our country crime is a four element theory, a crime must have constituted an offence under the penal code object, criminal objective, the main crime, crime subjective

    嚴格責任是來源於英美法系的概念，適用嚴格責任的侵害行為屬於一些特定的犯罪，法律允許在犯罪構成的其他要件具備時，不論主體是否具備主觀上的罪過，均確認其犯罪性質，並依法追究刑事責任。
  16. Comparative study on the holistic frames of yin - yang five element theory and four element humor theory

    陰陽五行學說與四行體液學說宏觀框架體系的比較研究
  17. In this dissertation, a de - coupling analytical method is presented based on the actual measured pattern in aspect with linear arrays, then the method is applied in four - element array to yield satisfactory results

    對于線性陣列，本文給出了一種基於實測方向圖的去耦合分析方法，並且使用這種方法對4元線陣列進行了去耦合分析，得到了令人滿意的結果。
  18. Firstly, a novel four - element retrodirective array is designed, based on dual - polarization microstrip array antenna technology and phase - conjugating mixers technology. secondly, a simple, effective testing system is designed and set up, by which the array ’ s monostatic and bistatic radar cross section ( rcs ) are tested

    本文所採用的技術和方法，新穎、簡單、易實現，適合具體的工程應用;本文的結果對于天線研發人員研究方向回溯天線有一定的參考意義。
  19. The main contributions are showing as follows : 1 based on the theory and specialty of four - element and infrared guidance system, a new method of calculating the relative location of the target and forming the instruction for the infrared missile to tracing the target is proposed in this thesis

    本論文主要成果和創新性工作如下： 1 、針對紅外多元探測器的工作原理和結構特點，結合紅外製導導彈系統的結構、原理，提出了利用紅外多元探測器提供的信息解算目標位置並形成相應控制指令的方法。
  20. Teacher : what are the four element of nature

    老師：自然界的四大元素是什麼？
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