無激波的 的英文怎麼說

中文拼音 [wújībōde]
無激波的 英文
shock-wave free
  • 無 : 無Ⅰ動詞（沒有） not have; there is not; be without Ⅱ名詞1 （沒有） nothing; nil 2 （姓氏） a surn...
  • 激 : Ⅰ動詞1 （水因受到阻礙或震蕩而向上涌） swash; surge; dash 2 （冷水突然刺激身體使得病） fall ill fr...
  • 波 : Ⅰ名詞1 （波浪） wave 2 [物理學] （振動傳播的過程） wave 3 （意外變化） an unexpected turn of even...
  • 的 : 4次方是 The fourth power of 2 is direction
  1. 2 transmission of longitudinal stress wave in non - defect pipeline excited by axial symmetry impact has been studied by the numbers

    2 、對無缺陷管道中受軸對稱沖擊載荷下激勵出的應力波進行了較為系統的實驗研究。
  2. The beam division method in maskless laser interference photolithography can be divided into wave - front division and amplitude division

    摘要無掩模激光干涉光刻中的分束方法一般有波前分割和振幅分割。
  3. Fluo - 3, a visible light - excitable ca2 + indicator, overcomes the limitation of quin - 2, indo - 1 and fura - 2 but no longer display any spectral shifts upon ca2 + binding and thus rati ometric measurements are not possible

    表明所合成試劑stdin ? am是目前國內外唯一的可以am酯型無損傷導入細胞、雙波長、可見光激發的胞漿特異性ca ~ （ 2 + ）熒光探針。
  4. In this paper, high - order accurate weighted essentially non - oscillatory ( weno ) schemes are investigated and their applications in hyperbolic conservation laws are discussed. based on this, a new weno difference scheme which based on dispersion - relation - preserving relation is developed, and representative test cases with this scheme for computational aeroacoustics ( caa ) problems has been implemented and compared in order to test capability of wave capturing ; in addition, weno schemes generally do not converge at high order in the presence of contact discontinuity of euler equations, so a conservative front tracking technique coupling weno schemes and level set method to simulate the translating density profile is presented here, and numerical simulation with this technique for representative test case has been implemented and results show the desired accuracy

    本文研究了高階精度加權基本無振蕩（ weno ）格式及其在雙曲守恆律方程中的應用，在此基礎上作了兩個方面的工作：一是針對高頻聲波問題構造出一種基於保色散關系（ drp ）的weno有限差分格式，並對計算氣動聲學（ caa ）問題的代表性算例進行了大量數值實驗，比較了該格式捕捉波數的能力；另外，針對高階weno格式在處理euler方程的接觸間斷時精度有所降低的問題，研究了利用界面追蹤技術levelset方法和高階激波捕捉weno格式相結合的一種守恆追蹤方法，並且給出有代表性的密度滑移面問題的算例，得到一致高階精度的數值模擬結果。
  5. Unusually savage company cost - cutting early in this cycle is another reason why recent productivity swings have been so extreme

    最近生產率波動如此激烈的另一個原因就是無理的公司異常地消減成本。
  6. In order to utilize the frquency resource adequately and increase the capacity of mobile communication system, the wireless electric wave propagation of existing mobile system always adopts the microcell structure. forecasting the path loss characteristic of electric wave accurately can provide the necessary condition for the layout and design of wireless network, at the same time it is a precondition for the research on the microcell mobile system. the methods of forecasting of wireless electric wave propagation can divide into two parts : one is pluse and respond, that is establish the empirical model based on experimental and statistical data ; the other is ray tracing method, that is establish the deterministic model based on theoretical analyse. the paper discuss the characteristic of wireless signal electric wave transmition in symmetrical atmosphere of earth, and introduce the common path loss transmition model in land mobile communication system, also point out the localization of these models based on experiential methods

    而精確預測無線電波傳播路徑損耗特性，則為合理的微蜂窩無線網路規劃、設計提供了必要條件，同時也是研究微蜂窩移動通信系統性能的前提。無線電波傳播預測的方法分為兩類：一是用沖激響應法，即根據實驗、統計所得數據建立經驗性傳播預測模型；另一種是用射線跟蹤方法，即依據理論分析來建立確定性的傳播預測模型。本文首先討論了在地球表面均勻大氣中的無線電波傳播的基本特性，介紹了陸地移動通信系統中常用的幾種電波傳播路徑損耗經驗性預測模型，並指出了這些經驗性傳播模型對于微蜂窩小區無線電波傳播特性研究的局限性。
  7. At present, people usually use birefrigence and quasi - phase - matching methods to achieve higher effiency in the process of conversion. a significant advantage of quasi - phase - matching method is that the interaction is occurred through the largest element of the x ( 2 ) tensor ; the period of optical superlattice can be designed randomly, and any interaction can be matched without walk - off angle ; they are fitted to be used in frequency conversion of lower power especially. the quasi - phase - matching method has some advantages over birefrigence method, improving the efficiency of frequency conversion ; the range of frequency conversion covers its whole transperant wavelength

    由於準相位匹配技術有其獨特的優勢，可以利用非線性光學晶體的最大二階極化張量，如ppln 、 pplt 、 ppktp用的非線性極化張量都是d _ （ 33 ） ，其有效非線性系數高出普通非線性光學介質（如bbo 、 lbo 、 ktp ）一個數量級，而且可以人為靈活設計調制周期，通過周期設計其頻率變換范圍可以覆蓋準相位匹配介質的整個透明波段，選擇無走離效應，解決了常規pm難以解決的問題，拓寬了非線性晶體的應用范圍，極大地提高了頻率轉換效率，已成為非線性光學材料和固體激光器的研究熱點之一。
  8. The colonel of the polish uhlans, a handsome old man, flushing red and stammering from excitement, asked the adjutant whether he would be permitted to swim across the river with his men instead of seeking for a ford

    命令尋覓一個過河的淺灘，波蘭槍騎兵上校，漲紅著臉，激動得語無倫次。一位相貌堂堂的老人，向副官請求是否允許他不用找淺灘就帶領自己的槍騎兵泅水過河。
  9. The exponent of singularity is determined through asymptotic analyses, and the plastic shock is eliminated that exists in non - viscosity solutions

    經過對奇異場的漸近分析確定冪奇異性的階次，消除了無粘性解中存在的塑性激波。
  10. Study on optimum excitation wave in grout quality nondestructive testing of rock bolt

    錨桿錨固質量無損檢測中的激發波研究
  11. With the use of the average excitation energy approximation and the closure approximation, the solution is reduced to a time - dependent operator acting on the " bare " atomic state

    利用平均激發能近似和完備關系，可將此波函數簡化為一個含時的相乘算符作用於無場時的「裸原子」態上。
  12. With non - destructive testing technique ( ndt tech ), such as sound wave, electromagnetic and laser scanning, and at the same time, from the prevention - treatment ideas of tunnel health as the springboard, the healing technique is developed with pertinence to leakage and crack damage of the underground engineering supporting structure, and it has important practical value to guide the engineering practice

    結合目前主要的聲波、電磁波和激光掃面等無損檢測技術，從隨道健康的防治理念出發，開發了針對地下支護結構滲漏與裂損的康復技術，對指導工程實踐具有重要的實用價值。
  13. 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測量系統的理論模塊，包括根據snell原理，研究極限折射縱波的激發機理，並使用有限元軟體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法進行介紹;根據收集的資料，介紹了三種使用極限折射縱波測量無縫焊接鋼軌溫度應力的方法，即固定距離測量聲時法、臨界角折射法和頻譜分析法，本實驗系統使用的是第一種;根據實驗經驗以及相關資料，分析了影響極限折射縱波測量溫度應力的幾個因素，並提出了相應的解決方法;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。
  14. We practically applied the wnnd scheme to solve scalar conservation laws and euler system in one dimension and n - s equations in two and three dimensions. the numerical results of wnnd schemes indicated good shock transitions without any noticeable oscillations and uniformly high accuracy in smooth regions. the wnnd scheme could catch the detail o f the flow field more particularly

    本文應用wnnd格式數值模擬求解了一維標量方程、一維歐拉方程、二維n ? s方程和三維n ? s方程，數值結果表明， wnnd格式在激波附近基本無波動，且在解的光滑區保持空間的統一高階精度，較之nnd格式， wnnd格式能夠更高解析度的捕捉到流場細節。
  15. An alternative to traditional pipe detection method is to excite stress waves, which can propagate along the pipe, and to monitor the response of the pipe for changes in the received signal at some remote positioa an ultrasonic inspection technique using guided waves was applied to detect and determine the exact location of flaws in long steel pipes

    而傳統無損超聲檢測技術是單點檢測，因而，在檢測長距離管道時，這種方法遇到很大困難。而利用縱向超聲導波檢測管道缺陷，激勵導波沿管道傳播，通過監測管道回波的變化，達到一次檢測數十米的管道範圍，並且是全范圍檢測。
  16. If the inviscid solution includes the interaction that a central rarefaction wave collides with the boundary and the boundary reflects a new shock wave which is tangent to the boundary, or the inviscid solution includes some shock wave which is tangent to the boundary, then the error of the viscosity solution to the inviscid solution is bounded by o in l1 - norm ; otherwise, as in the initial value problem, the error bound is o

    如果無粘解包含中心稀疏波與邊界相撞且邊界反射一個與之相切的新激波這樣的相互作用，或者無粘解包含與邊界相切的激波，那麼在l ~ 1 -范數下粘性解與無粘解間的誤差界是o （ ~ （ 1 / 2 ） + | ln | + ） ；否則，類似於初始值問題，誤差界是o （ | ln | + ） 。
  17. Based on the theoretical analysis, we experimentalize to the output characteristic of laser and probe into the efficiency and output power of the er - doped yag solid laser, moreover, we research and development a compact, no water cooled and low frequency central wavelength 2. 94 u m laser sample

    在理論分析的基礎上，對該波長激光的輸出特性進行了實驗研究，探討了摻鉺yag固體激光器在效率和輸出能量等方面的問題。並研製出一套小型化，無水冷，低重頻，輸出中心波長2 . 94 m的激光器。
  18. In recent several decades, ultrasonic phased arrays had been applied to many medical specialties and nondestructive evaluation ( nde ). an ultrasonic phased array consists of multiple elements which are usually cut or etched from a single piezoelectric plate of lead zirconate titinate ( pzt ). the element thickness determines the operating frequency of the transducer

    近年來，隨著科學技術的飛速發展，超聲相控陣已廣泛的應用在醫學、無損檢測等方面，所謂相控陣，就是由多個壓電陶瓷片（陣元）按一定的分佈排列，然後逐次按欲先規定的延遲時間激發，就可以實現聲波的聚焦。
  19. The scanner emits a low - frequency radio signal, activating the microchip

    掃描儀會發出一些低周波的無線電信號，來激活微晶元。
  20. Not only can it be excited by visible light but also displays a spectrum - shift upon binding with ca +. moreover, it targets precisely into cytosol only, and thereby exhibits great advantage beyond flou - 3 and ruro - 2. thus it is possible to use stdin - am to measure real - time variation of [ ca2 + ] in cytosol

    同時細胞熒光圖像分析顯示， stdhi一am進入細胞后只標記胞漿c擴+而不標記胞核c擴+ ，是目前唯一的可以am酉旨型無損傷導入細胞、雙波長、可見光激發的胞漿特異性c擴+熒光探針。
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