拋物層 的英文怎麼說

中文拼音 [pāowùcéng]
拋物層 英文
parabolic sheaf
  • 拋 : 動詞1. （扔; 投擲） throw; toss; fling 2. （丟下; 拋棄） leave behind; cast aside; abandon
  • 物 : 名詞1 （東西） thing; matter; object 2 （指自己以外的人或與己相對的環境） other people; the outsi...
  • 層 : i 量詞1 （用於重疊、積累的東西 如樓層、階層、地層） storey; tier; stratum 2 （用於可以分項分步的...
  1. Visual carbon stars whose mid - infrared spectra are mainly dominated by photospheric continuum and show large excesses at 60um, represent a transition phase which follows an interruption of mass loss from the oxygen - rich phase and begins a new phase of the mass loss of carbon - rich material. excesses at 60um in these stars are the emission from the residual of oxygen - rich material

    光學碳星的中紅外能量主要來自光球，在60 m處存在超量發射，人們認為其演化階段處在拋射富氧物質終止和新的富碳拱星殼層形成之間，其60 m超量發射就是富氧物質的殘余效應。
  2. To investigate the practicability of a solar - direct - pumped fiber laser by using a parabolic dish concentrator, the solar power absorbed by the fiber laser and its absorption efficiency were calculated with numerical method based on the characteristics of solar spectrum in outer space

    摘要為了研究拋物面碟形聚光器實現太陽能直接抽運光纖激光器，根據空間太陽光譜分佈特點，採用數值方法，計算了用該聚光器聚集太陽能量抽運雙包層光纖激光器時光纖吸收的太陽能量及其吸收效率。
  3. This machine is comprised of screen box, vibration source and damper, vibrating frame and screen box are connected with 4 - 12 group soft rubber damp - ers fixed up and down, and the centrifugal force is generated therein, the floating ampli - tude is controlled by the damper, by which, material realizes a process of throw and lami - nation filtration downward, and therefore reach - ing the optimized grading and screening ef - fect

    本機由篩箱.振動源及減震器三大部分組成.振動機架與篩箱連接有4 - 12組軟橡膠減震器上下固定，產生離心力，由震器控制浮動振幅，使物料有一個向下拋震和向下分層過濾的過程，從而達到最佳分級過篩的效果
  4. A reliability experiment of thermal aging was carried out for the two types of joints, scanning electron microscopy, energy dispersive x - ray spectrometer and micro x - ray diffractomer were adopted to investigate the interfacial evolution behavior of joints, and kinetics model of imc formation was established. the results show that imc growth follows the parabolic law as a function of aging time at certain aging temperature, imc growth is more sensitive to the aging temperature than the aging time, the activation energy of cu - al imc growth is 97. 1kj / mol and the major forming cu - al imc are cual2 and cu9al4, the activation energy of au - al imc growth is 40. 1kj / mol and the main au - al imc are au4al and au5al2, with au2al and aual at the interfacial periphery of joints, the rate of cu - al imc growth is about 1000 times slower than that of au - al imc, and kirkendall voids and cracks are easily appeared during thermal aging in gold ball bonds while voids and cracks are absent in copper ball bonds even after aging at 200 for 2900 hours and 250 for 169 hours

    研究結果表明:金屬間化合物厚度與老化時間的關系符合拋物線法則，金屬間化合物的生長對老化溫度比老化時間更加敏感; cu - al金屬間化合物生長的激活能為97 . 1kj / mol ，老化后金屬間化合物呈層狀分佈，主要相為cual2和cu9al4 ; au - al金屬間化合物生長的激活能為40 . 1kj / mol ，主要相為au4al和au5al2 ，同時在界面周邊區域生成了au2al和aual ;老化過程中cu - al金屬間化合物生長速率比au - al金屬間化合物生長速率小103數量級;金絲球鍵合點200老化96小時出現了明顯的kirkendall空洞和裂紋，但銅絲球鍵合點200老化2900小時和250老化169小時都沒有形成空洞和裂紋。
  5. A normal transform is introduced, and there are enough much grids in the region between the critical layer and the wall, where the variation of the disturbance is the quickest. the finite - difference of governing equations with fourth - order accuracy in the normal direction is utilized in full regions including points close the wall, and is very important for accurately discreting equations. the combination of global and local methods is implemented, and a new iterative formula is derived

    對于曲線坐標系下的拋物化穩定性方程，文中發展了求解的高效數值方法:引進法向變換，使得在臨界層與壁面之間的擾動量變化最快的區域有更多的法向網格點;導出包含邊界鄰域在內的完全四階精度的法向有限差分格式，這對方程精確離散至關重要;採用全局法和局部法相結合的方法及其新的迭代公式，大大加速收斂並得到更精確的特徵值。
  6. At last, the surface of the alumina femoral head was grade - polished with sic micropowder and diamond grinding cream, the join part was trimmed with specific instrument, which made the surface of the alumina femoral head reach the degree of approximating mirror finish and match the femoral stem well. the artificial partial hip joint prostheses was finally got by articulating the alumina femoral head with ti alloy femoral stem coated with bioactive coating

    最後，採用sic超細粉和金剛石研磨膏對氧化鋁陶瓷股骨頭表面進行分級拋光，用專用器械修整其聯接部位，得到表面具有近似鏡面光潔度並與股骨柄配合良好的氧化鋁陶瓷股骨頭，並與表面塗覆生物活性塗層的鈦合金股骨柄配伍，最終獲得人工半髖關節假體。
  7. A two - layer implicit difference schemes for solving parabolic equation of higher oder

    高階拋物型方程的兩層隱式差分格式
  8. A two layer implicit difference schemes of high accuracy for solving four order parabolic equations

    四階拋物型方程一個兩層的高精度隱式格式
  9. A class of three - layer implicit difference schemes of high accuracy for solving four order parabolic equations

    四階拋物型方程一族三層的高精度隱式格式
  10. Based on the qps ionosphere model, the gradients model 、 quasi - cosine disturbed model and qps model with es layer are also introduced. then using the platform, the backscatter ionogram of these typical states are simulated, comparing with the real ionogram to find that they can match well, which proves the validity and practicability of the platform. the influence of the inputting parameters of these model and antenna patterns on the backscatter ionogram is also discussed in this paper

    本文在球形對稱準拋物電離層模型基礎上，分別引入了梯度模型、準餘弦擾動模型、包含es層的準拋物模型，然後利用該模擬平臺，對這幾種典型電離層狀態的返回散射電離圖進行了模擬，並與實測圖進行了比較，一致性很好，證明了該模擬平臺的有效性和實用性。
  11. We study in this paper the filtration problem in partially saturated layered porous media in one dimensional. that is the thid problem boundary value problem of on dimensional degenerate quasi - linear elliptic - parabolic equation with discontinuous coeffi - cients. the existence, uniquess of the solutions and some properties of the solution are proved

    本文主要討論一維有限雙層多孔介質中部分飽和的滲流問題，即具有間斷系數的一維擬線性橢圓-拋物退化方程的第三邊值問題。證明了該問題的解的存在性、唯一性及弱解的邊界性質。
  12. She has shot up to womanhood in the slums and on the pavements of paris, and tall, handsome and as superbly grown as a dunghill plant, she avenges the beggars and outcasts of whom she is the ultimate product

    她出生在郊區，在巴黎街頭長大，她個兒高大，花容月貌，肌膚細嫩，猶如一棵生長在糞土上的植物。她出自乞丐和被拋棄的人的階層，她要為他們報仇。
  13. First, the ray tracing equation and its numeric solution is presented in this paper, then on the base of quasi - parabolic ionosphere model, using the technology of the numeric ray tracing, a ray tracing simulateing platform is established. this platform can simulate the ray tracing for a fixed frequency or sweeping frequencies, also can calculate the group path and the covered region of rays

    首先，本文給出了射線追蹤方程及其數值解法，在球形對稱準拋物模型背景電離層基礎上，利用數字射線追蹤方法，建立了射線軌跡演示平臺。該平臺可實現定頻或掃頻射線軌跡演示，計算各射線群路徑，覆蓋區域等功能。
  14. Amony his films, he starred as a lot of personalities from city slicker to count, vagabond, banker, murderer and adventruer - these roles are branded on the menory of his audience. poor people who were abandoned by society looked onward and sought bravely for happiness and took care of the others he was full of humor in those films

    他飾演過的人物中，從都市中的老油條到伯爵先生，從市井小人到銀行家，從殺人凶手到冒險家，深深的烙印在觀眾的記憶中，影片中的他，有時貧窮但勇敢地追求幸福，有時富有卻百無聊賴，處于社會的最代層卻執著地嚮往光明和愛情，被社會所拋棄時時刻開愛著他人，他所演飾的人物，親切而真實，在輕松，幽默中展示出人生的光輝。
  15. A class of two - level explicit difference schemes for solving three - dimensional parabolic equations

    三維拋物型方程的一族兩層顯格式
  16. Aimmed to retard the response of ballistic missile defence system, the wavy trajectory with three crests is designed in this thesis to replace traditional parabola one. this kind of trajectory make anti - defence system have lots of difficulties to detect and compute the track and destination of ballistic missiles before reentry. so, applying the wavy trajectory can greatly improve the anti - defence ability of ballistic missiles

    從延緩導彈防禦系統的早期預警時間著手，將傳統彈道導彈的拋物線彈道中段設計成有多個波峰的跳躍式彈道，使得探測系統在導彈再入大氣層之前，很難準確探測和計算導彈的落點，使得防禦系統防不勝防，從而大大地提高了彈道導彈的突防能力。
  17. A three - layer explicit difference scheme for solving the parabolic equation of higher order

    解高階拋物型方程的三層顯式差分格式
  18. It was found that, the high - temperature oxidation of ni - fe alloy plating obeys parabola law. furthermore, the rate of oxidation increased with fe wt % and the temperature

    結果表明， ni - fe合金鍍層高溫氧化服從拋物線規律，氧化速度隨著鐵含量的增加而增加。
  19. Multilevel iteration fast algorithm for the parabolic equations

    拋物型方程的多層迭代快速演算法
  20. In this thesis, the parabolic stability equations ( pse ) in the different coordinate systems are driven from navier - stokes ( n - s ) equations. the stability problems of the boundary layers for three - dimensional body, and the spatial evolution process of the c - type instability are studied

    本文從navier - stokes （ n - s ）方程出發，導出了不同坐標系下的拋物化穩定性方程（ pse ） ，研究了三維物體的邊界層穩定性問題，以及三維擾動的c型失穩的空間演化過程。
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