重力最小值 的英文怎麼說

中文拼音 [zhònglìzuìxiǎozhí]
重力最小值 英文
gravity minimum
  • 重 : 重Ⅰ名詞（重量; 分量） weight Ⅱ動詞（重視） lay [place put] stress on; place value upon; attach im...
  • 力 : Ⅰ名1 （力量; 能力） power; strength; ability; capacity 2 [物理學] （改變物體運動狀態的作用） forc...
  • 最 : 副詞（表示某種屬性超過所有同類的人或事物） most; best; worst; first; very; least; above all; -est
  • 小 : Ⅰ形容詞1 （體積、面積、數量、強度等不大） small; little; petty; minor 2 （年紀小的; 年幼的） youn...
  • 重力 : [力學] gravity; force of gravity; gravity force; power of gravity; pull of gravity; gravitational...
  1. Compared with straight ray tracing, inversion of bending ray tracing is better when data of test are accurate. on the other hand, natural weight is introduced and numerical simulations and experiments of wlm on inversion of velocity and attenuation are also made, which show that wlm, with resistance of noises and convergence of iteration, may get good re - construction images

    本文引入了物理意義明確的自然權，對基於自然權的加權阻尼最小二乘反演演算法（ wlm ）在速度反演、衰減反演中進行了數值模擬和試驗研究，結果表明wlm均能獲得良好的重建圖像，迭代收斂，抗噪能力強。
  2. The asteroids are the most important small bodies in the solarsystem, and they mainly lies in the two locations - a main belt between the mars ' s orbit and the jupiter ' s and the near - earth space. the most feature of the orbits of near - earth asteroids ( neas ) is that the semi - major axes of the orbits are nearly equal to that of the earth or the perihelia distances are approximate to or even less than the mean distance between the sun and the earth, thus they could move into inside of the earth ' s orbit, so that they might close approach or even colliside with the earth ( or other planets, such as the venus, the mars, etc. ). the characteristic brings about some difficulties in the numerical research during their orbital evolution, which leads to the failure of the normalization technique in the general removal impact singularities of celestial mechanics methods and the symplectic algorithm which is successfully applied to the investigation in quality. by comparing the computation effects of several common numerical methods ( including symplectic algorithm ), and considering the nature of the movement of the small bodies, the corresponding treatments are provided here to improve the reliability of the computation

    小行星是太陽系最重要的一類小天體，主要分佈在兩個區域；火星和木星軌道之間的一條主帶和近地空間.近地小行星軌道的最大特點是其軌道半長徑與地球軌道半長徑相近，或近日距離接近甚至小於日地平均距離，其運動可深入到地球軌道的內部，這將導致該類小行星與地球（還有金星、火星等）十分靠近甚至發生碰撞.這一特徵給其軌道演化數值研究帶來一些困難，包括天體力學方法中一般消除碰撞奇點的正規化處理以及對定性研究十分成功的辛演算法都將在不同程度上失效.通過對幾種常用數值方法（包括辛演算法）計算效果的比較，根據小天體運動自身的特性，給出了相應處理措施，從而可提高計算結果的可靠性
  3. Since the temperature difference was most important parameters in thermal effects calculation, a combined temperature difference method considered year temperature difference and day temperature difference was put forward. with the combined temperature difference obtained from field tests, a lot of calculations have been done by finite element method ( fem ), considering of different structural measures. the law of displacement and stress in cshbb was presented and a relative displacement formula was deduced

    在介紹小砌塊建築的溫度作用分析方法的基礎上對溫度作用計算中最重要的參數? ?溫差取值進行了探討，提出了同時考慮年溫差和日溫差影響的組合溫差取值方法；根據各種不同的組合溫差取值方法，結合現場實測數據給出了試點建築的組合溫差取值，並考慮了不同構造措施的影響，對試點建築進行了有限元的溫度效應計算；給出了小砌塊建築的位移變化規律和應力變化規律以及層間相對位移的計算表達式。
  4. The research result indicated : for the strip primary mirror discussed in this article, the hexagon light - weighted cell has the best structural rigidity quality, the square cell is a little worse, the triangle cell is the worst ; there is an optimum on primary mirror thickness ; on condition of 1g gravity load combining with 4 centigrade uniform temperature rising, the thinner and higher of the flexible support reed, the better of the primary mirror surface figure. the decision of the structural parameters of the flexible support reed must take static rigidity, dynamic rigidity, static strength and dynamic strength of primary mirror assembly into account

    研究結果表明：對于本文的長圓形主鏡，採用正六邊形輕量化孔，鏡體結構剛性品質最好，正方形次之，正三角形最差；主鏡鏡體厚度存在最佳值；主鏡組件在1g重力、均勻溫升4共同作用的工況下，主鏡柔性支撐簧片厚度越小、高度越高，主鏡綜合面形誤差（ p - v值）越小，但同時主鏡組件的剛體位移增大、固有頻率下降，因此柔性支承結構參數的確定要綜合考慮主鏡的綜合面形誤差和主鏡組件靜態剛度、動態剛度、靜態強度和動態強度等因素。
  5. In chapter 3, the subgrid eddy - viscosity model for large eddy simulation is applied to calculate the three dimensions unsteady periodic turbulent flow in yantan francis turbine. the pulsating characteristics of some main physical parameters in flow field are found. the calculated axial water thrust of hydraulic turbine agrees with the model - test value

    第三章採用大渦模擬亞格子渦粘模型，對巖灘混流式水輪機的流場進行三維非定常湍流分析，得到了流場中各物理量的脈動特性，計算出ms的軸向水推力與模型試驗值大小相當；同時論證了對于下機架承重的混流式水輪發電機組可採用其推力軸承負荷作為水電站廠房振動的最大垂直激振荷載。
  6. And the relation between these velocity was analyzed at last. this is the conclusion : ( 1 ) the distribution of the velocity and concentration are get in the open channel flow and as the sewage flow is gravity flow, the equations is fit for this too. ( 2 ) generally speaking, the self - cleaning velocity should be the starting velocity, and it could fit for the self - cleaning target in limited sense theoretically, but when facing some higher requirement, it is not large enough

    最後結合污水流動的最小設計流速與顆粒起動流速、臨界不淤流速的關系進行了分析，結論如下: （ 1 ）文中所得出的速度分佈與濃度分佈是在明渠兩相流動情況下推得的，由於污水管道流動多為重力流，是明渠流中的一種，所以文中的分析在認識污水流動特性方面具有一定的參考價值。
  7. And the no - isothermal structure can accelerate the breaking of gravity wave in mesospause, and the breaking of gravity wave is an important source of convection and small - scale waves. the propagation of gravity wave will affect the distribution of minor species. the breaking of gravity wave accelerates the downward transport of atomic oxygen, some smaller - scale structures appear on the horizontal distribution of atomic oxygen number density, and other chemical species are also affected due to the chemical reaction with atomic oxygen and the propagation of gravity wave

    在重力波的傳播過程中，氫氧大氣成分的水平和垂直分佈均受到了不同程度的影響，以氧原子的響應最為明顯，而其中重力波破碎在氧原子水平分佈上的反應則是非線性重力波過程的一個重要表現；另外，分析顯示，重力波的非線性傳播對oh氣輝的峰值分佈由明顯影響，小尺度重力波的傳播有時會引起oh氣輝出現奇異的雙峰分佈，重力波的破碎現象也可以從對氣輝的觀測中反映應出來，這對利用氣輝觀測研究重力波傳播特性有非常重要的指示意義。
  8. The retaining wall reclining on the slight slope built on soft foundation is usually used in protecting the shore of river, the contradiction between the lack of impartiality in stress of the base and the small stress allowed by the foundation as well as the lack of stabilization of the breast wall is a hard nut to crack in the engineering. in the paper, a tenon - base is added under the base of the retaining wall, on the study of the choice of the parameters and formulas used in calculation and the research of theory used in calculation, method used to deal with the load, etc, the writer gives a way to crack the nut mentioned above paragraphs and presents a qualitative and quantitative analysis about them, such as the equivalent inner friction - angle ( d ) and the passive press of the clay ( ep ), etc. in the end of the paper, using modern optimization method, a design of the retaining wall reclining on the slight slope built on soft foundation is done, the result is economical, and accords with the fact

    軟基上的仰斜式擋土墻在水利工程河道護岸中經常遇到，仰斜式擋土墻基底偏心應力較大和軟基土地基容許承載力偏小的矛盾以及擋土墻抗滑穩定不足是工程中難以解決的難題。本文在對仰斜式擋土墻設計中有關計算參數的選擇、公式的選用應該注意的問題進行了研究，對河道護岸軟基礎上的仰斜式擋土墻採用凸榫基礎處理的方法，就其計算理論、設計驗算中各荷載的具體處理方法進行了較為細致的研究，提出了解決軟基礎上的水工仰斜式擋土墻難以解決的難題的方法，並對有水情況下粘土等效內摩擦角_ d 、凸榫被動土壓力e _ p等在計算中的取值提出了定性和定量的分析。最後利用現代優化方法對軟基礎上的水工仰斜式擋土墻進行了結構優化設計，得出了符合實際的結果，與其它重力式擋土墻形式進行比較，取得了明顯的經濟效益。
  9. Based on the method of limitation analysis of soil plasticity, researching from the soil arching mechanism of soil - nailing retaining, the upper limit of the critical height of soil - nailing slopes and the minimum horizontal length from coping of the potential slide surface to the edge of deep excavation are obtained through the analysis to weight of soil and vertical loading and the mechanism of soil and soli - nailing acting reciprocally

    摘要基於土的塑性極限分析方法，以均質土坡為例，從土釘支護結構的準粘聚力理論出發，綜合考慮土體自重、坡頂的條形荷載，以及土釘與土體的相互作用的機理，推導出了土釘支護的臨界高度的上限值和潛在螺旋曲線滑動面在坡頂方向距基坑邊沿的最小水平距離解析表達式，可供基抗支護設計參考。
  10. Theory is presented in the first part. based on the definition of resident historic district, the development of this theory and practice, especially those new theories in foreign countries, the values, and austere complexion are analyzed and concluded ; " conservation " and " renewal " are also defined in the point of historic dynamic development. finally, based on the theory of sustainable development and organic renovation, this paper issue the major principles in this subject

    論文在對居住性歷史街區概念界定的基礎上，對國內外理論的發展和具體實踐，尤其是國際上關於此課題的最新理論作了總結分析，從中汲取了經驗和教訓；然後分析了居住性歷史街區的價值和保護更新面臨的嚴峻形式和難點，並從歷史動態發展的角度對「保護」與「更新」概念作了重新闡釋；最後基於可持續發展和有機再生的理論基礎，提出了保護街區歷史風貌和社會生活結構延續性，小規模漸進式的保護更新方法和大力提倡公眾參與的整體保護和動態保護的保護更新原則。
  11. To put into operation a large amount of non - linear load, make in harmony wave of rural power grids serious becoming in pollution, pass to rural local electric wire netting main in harmony analysis of wave source, put forward in order to restrain from insert rural power grids in harmony wave source voltage total in harmony wave distortion rate and the containing rate change last device number pulsating for increase of goal, increase the pulse of the current change device and install light specified value electricity active wave filter mix with passive wave filter near the harmonics source to control the wave in harmony

    摘要大量非線性負荷的投運，使農村電網的諧波污染日趨嚴重，通過對農村地方電網主要諧波源的分析，最終提出了以限制接入農村電網的諧波源的電壓總諧波畸變率和各次諧波電壓含有率為目標的增加換流裝置脈動數，以及在諧波源附近裝設小額定值的電力有源濾波器配以無源濾波器的混合型電力濾波方式，以進行諧波治理。
  12. The research resuits mainly include : credit capital is not equal with stock capital, low risk capital structure is one strategic choice and competition advantage ; more capital from the core stocanolder and famous investment institution, more easier the company can finance ; relationship lending is one important credit financing means for internet company ; from the point of tfade - off theory, conservative capital structllre is suitable for intcmet company presently ; small proportion is preferable when liability level is readjusted, since it is easier to access the optimal capital structure.

    主要內容包括：債權資金與股權資金不對等，不可以完全替代；低風險的融資結構是一種戰略性選擇；核心股東增加投資和廣大具有市場影響力的機構投資者投資網路公司都是傳遞公司價值的信號；關系型貸款是重要的債權融資方式；從權衡的角度看，現階段宜選擇保守型融資結構；調整負債水平宜採取謹慎小幅度的策略，這樣更容易接近最佳融資結構。
  13. Meanwhile, the key research topics are focused on how to reduce the differential settlement between the main tall building and the anex on soft ground, where to set the post - cast strip, and what cause the smart change of the internal force of plate under the core canister of tall building. an experiential equation for estimating the maximum moment of plate is advanced. a method for calculating the range and the thickness of the local enganced plate and another experiential equatio n for estimating the increment of maximum moment of the local plate are also suggested

    同時著重就軟弱地基中減小高層建築主裙房之間沉降差異的措施、施工后澆帶的設置位置，以及高層建築核心簡體下筏板內力變化劇烈等問題展開了分析，提出了筏板最大彎矩估算值的經驗公式，獲得了簡體下局部筏板加厚處加厚范圍及加厚厚度的取值方法及加厚處最大彎距增幅估算值的經驗公式，為今後設計同一類型高層建築提供一些借鑒。
  14. Numerical results are obtained for velocity, temperature and concentration profiles, variations of both nusselt and sherwood numbers under different buoyancy ratio and inclination angles of = 15 - 90. at a given inclination angle, heat and mass transfer rates decrease with heat and mass buoyancies and the buoyancy ratio b decrease from high positive values, and then increase again with the buoyancy radio b further decreasing after the velocity and transfer rates reaching a minimum

    研究結果表明：傾斜角度一定，當熱浮力與物質擴散浮力共存且二浮力之比b從較高正值變化到較高負值時，流體速度和熱質傳遞速度從高逐漸變低並出現最小值，此後隨著向下浮力的增大，流體向下流動且隨| b |的增大而加速，熱質傳遞速率隨| b |的增大而重新增大。
  15. The numerical results show that the horizontal variation of response acceleration of gravity retaining wall is quite small since its lateral rigidity is large enough, the response at a given height level can be considered as the same, the maximum accelerations at different heights on the central vertical line can describe the distribution of earthquake load along the wall height in static analysis very well

    數值結果顯示，重力式擋土結構剛度很大，地震加速度反應在水平方向差異很小，可看作是同步的，可取中心線上各點最大加速度來描述靜力法中地震作用沿高度的變化規律。在沿墻高度方向，加速度分佈不是呈直線變化，比較復雜，總的變化趨勢大體一致。
  16. After that, the quotas of chongqing ' s during its economic development are calculated by the use of " solow extra value method ". in this way, this chapter moves on to analyze the factors to the changes of chongqing ' s quotas of the productivity of comprehensive elements. still further, by the comparisons made between those quotas mentioned above and those international figures. chongqing ' s present stage in the theoretical economic development process is presented. then, the fifth chapter mainly concentrated on the analysis of the effects caused by elements, such as investments in fixed assets, adjustments of ownership structures, the opening - up policy, as well as labor and capital accumulation ; on chongqing ' s economic growth

    分析了重慶三次產業發展及結構變化情況，並通過經濟增長、三次產業、工業結構變化等有關指標與全國及省際數據的比較，重慶三大經濟區的發展比較，描述了重慶經濟發展及工業化進程的一些特點；介紹了綜合要素生產率的理論及分析方法，並用索洛余值法計算節重慶經濟發展階段的綜合要素生產率，分析了綜合要素生產率變動的原因，並通過與國際的比較，確立了重慶經濟發展的階段；分析了固定資產投資、所有制結構調整、對放開外及人力資本積累等因素對重慶經濟增長的影響，提出了相應的對策建議；最後是本文的結語，對本文的主要論點進行了小結。
  17. This speciality has great effect on the amount of creep, unloading proportion of core concrete and stress path of steel tube, and so on

    這一特性對鋼管高強混凝土軸壓構件的徐變值大小以及徐變過程中核心混凝土的卸載比例、鋼管最終的應力路徑等有重大的影響。
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