useful wave 中文意思是什麼

useful wave 解釋
有用波
  • useful : adj. 1. 有用的，有益的，有效的，有幫助的。2. 〈俚語〉值得稱贊的，精通…的 （at）。adv. -ly ,-ness n.
  • wave : n 〈美海軍〉女志願軍人〈見 WAVES 條〉。n 1 波浪；碎浪； 〈the wave（s）〉 〈詩〉海。2 波動；波狀...
  1. As a newly developed high - performance ship, wave piercing catamaran ( wpc ) has been applied and investigated more and more extensively. in this paper, the theoretic calculation method of wave resistance of a kind of wave piercing passenger catamaran with 500 passengers has been researched, including the ship lines optimization ; the fast speed experiment research work and the research of the relation between the principal dimensions and the resistance. the relation between the wave piercing catamaran and the ship form parameters has been further researched, and also some useful theoretic basis and practical means have been provided for its practical engineering appliance

    本文以「 500客位穿浪雙體船」為研究對象，對穿浪雙體船興波阻力理論計算和船型優化方法進行了研究，其主要研究內容如下：一、穿浪雙體船的線型優化二、穿浪雙體船快速性理論與試驗研究三、穿浪雙體船主尺度與快速性的關系通過以上內容，較深入的研究了穿浪雙體船船型參數與快速性的關系，為其在實際工程中的應用提供了理論依據和解決方法。
  2. From the viewpoint of resource demand, ocean multi - wave exploration is a useful technology to resolve the difficult problem just as blur zoon, structure distortion and gas pollution etc. because of the monopolization by developed countries with high price and high technology, the developing of our ocean multi - wave exploration technology has been baffled for a long time

    從我國油氣資源來看，海上多波地震是解決海底模糊帶、構造變形和氣污染等問題的有效技術。由於西方國家對我國的高價壟斷和高技術封鎖，使我國海上多波勘探技術的發展受到了嚴重製約。
  3. The result can be long distance reception of radio waves that would normally have been far beyond the radio horizon. the equations for ray tracing were given, simulating and tracing electro - magnetic wave duct propagation using spherical layered atmosphere mode, this method is very useful for analysis of radar echo distribution and confirm relation of stratification of atmosphere and ray duct propagation in the process of studying radar second product, introduce a new 3 - d interpolation method. outcome of this method can suit all kinds of density product

    在雷達二次產品處理演算法中，討論了一種新的三維插值，比以往在顯示每一個雷達二次產品時，都作一次插值相比，這種方法既節省了總的機時，也提高了每個產品的顯示速度，在討論這種方法后，用幾個產品的實例，說明了這種方法是可行的，並且還討論了等值線的生成原理，在「雷達二次產品處理平臺」下，開發了visualc + +實現程序。
  4. A mathematic model of the motor is builded and emulated through matlab. the low - speed and constant - torque, high - speed and constant - power state is analyzed and researched, also the software approach of simulation to the driver has been done, a digital signal processor tms320lf2407 is developed successfully to control the perm square - wave bldcm driving airscrew of solar powered unmanned engine. it is useful to the further study

    在matlab下建立了電機的數學模型，通過計算機模擬，驗證了數學模型的正確性，同時在理論上對低速恆轉矩高速恆功率運行進行了分析與研究，提出了一種用模糊控制的方法實現恆功率控制，並對驅動器進行了系統模擬，成功的研製了以數字信號處理控制器tms320lf2407為控制核心的驅動器，控制無刷直流電動機驅動太陽能無人飛機的螺旋槳，為後面繼續研究工作提供了參考。
  5. Based on the theory of geometrical optics, the relationship between the axial force exerted on the micro - sphere particles in the mie scattering field and the main parameters of laser is calculated quantitatively when the absorption is considered. the results not only show the relationship between the axial force and some parameters, that include the absorption coefficient of microscopic particles, the laser wave - length, power and so on, but also are useful for choosing parameters in experiments

    摘要以射線光學模型為基礎，對微粒直徑遠大於激光微束的米氏粒子在考慮對光的吸收時軸向力與光源參數的關系進行了計算，計算結果給出了軸向力與微粒的吸收系數、波長、激光功率等參數的關系，為實驗中參數的選擇提供了依據。
  6. Our results explain the mechanisms of the composition and doping dependent thz radiation efficiency for the different crystals. experimental results in this thesis are useful for growing eo crystals with high performance, and suggest that more parameters are required for better characterization of this kind of crystals as thz wave emitters. the main results and conclusions are listed as follows : 1 ) experimental measurements with low cd composition zn1 - xcdxte < 110 > crystals ( 0 < x < 0. 25 ) as thz emitters indicate the optimum composition of x = 0. 05

    在國際上，我們首次用實驗研究了不同組分、不同摻雜的zn _ （ 1 - x ） cd _ xte < 110 >單晶（ x = 0 0 . 25 ）對thz輻射的吸收情況和它們產生thz輻射的相位匹配情況，並首次從晶體對thz輻射的吸收和晶體的相位匹配角度解釋了這些晶體產生thz輻射效率不同的原因。
  7. The longitudinal wave velocity in saturated soil could not only be useful, but reflect more information as well. the shear wave velocity may be different from the shear sewv, the difference is proved to be caused by porosity and structure factor

    認為潛水面下縱波速度能反映更多的信息，並且，橫波速度與骨架的橫波速度也可以由孔隙率及結構因子引起差異。
  8. By means of the results obtained, such as the quantificational relationships between the rock ultrasonic wave parameters and the important formation conditions like pressures, and the half - quantificational relationships between the rock ultrasonic wave parameters and porosity and density of those rocks, and the relationships between rock ultrasonic wave parameters and the composition of rocks, we established the corresponding relationships between the ultrasonic wave parameters and depth under the main formation conditions ( indicating temperature and pressure gradient ) in tertiary of zhujiangkou basin, which should be very useful for the geophysical exploration

    獲得了巖石聲學參數與壓力等重要地層條件之間的定量關系，巖石聲學參數與孔隙度和密度之間、以及與巖石組成之間的半定量關系，並建立了在珠江口盆地東部第三系主要地層條件下（指溫度梯度和壓力梯度）不同巖石類型的主要聲學參數與深度之間的對應關系，該關系可為地球物理正演模型的建立提供基本參數、並為地震反演提供新的約束機制。
  9. Transmition velocity relys on the style of encode and modulation essentially during modern data transmition for the quality of using line bandwidth and the immunity of code ties on them tightly. but it is important that the velocity of data transmition reaches its limitation in fact for the interface of environment and cross - talk. so for the improvement of transmition velocity, we must analyze the characteristics of noise signal and the model of line deeply and then take some useful measures to better the immunity of modulation wave

    在現代通信的數據傳輸過程中，傳輸速率本質上是由傳輸的編碼方式和調制方式決定的，因為編碼方式和調制方式直接決定了線路頻帶利用率和碼元抗干擾能力的好壞，因而直接決定了傳輸速率；但是在實際應用過程中，數據傳輸速率是不可能達到理想狀況的，因為環境干擾、串音干擾等因素的存在使得線路的頻帶不可能被完全利用起來；因此，必須認真分析線路的噪聲信號的特性以及噪聲線路的模型，以便在編碼方式和調制方式中針對性的做一些改進措施以改善調制波形的抗干擾能力，使得傳輸速率能夠進一步提高。
  10. Not particularly through radio communication, except on certain wave lengths that are absorbed by the atmosphere. but as points of departure for exploration they ' ll be very useful

    不是，尤其不能用無線電聯系，除非通過某些可以被大氣層吸收的波長進行聯系。至於從科學探索的角度出發，這些空間站是非常有用的。
  11. Such a simplified dressed wave function is useful in the calculation of laser - assisted scattering, especially in the laser - assisted rearrangement collisions

    此波函數適用於計算激光輔助的散射過程，特別是重排過程。
  12. Nowadays, as the wave of returning to the nature grows in the world, the change of human sickness pedigree causes the huge adjustment its medical mode, the chemical medicine has toxic and side effect, and the research of chemical medicine is costly, all this, makes the natural medicine more and more useful in international medicine market

    隨著全球范圍內「回歸自然」浪潮的興起，人類疾病譜改變所引起的人類醫療模式的巨大調整，加上化學藥品毒副作用大、研究代價昂貴，使得天然藥物在國際醫藥市場中的用途和影響不斷擴大。
  13. A. not particularly through radio communication, except on certain wave lengths that are absorbed by the atmosphere. but as points of departure for exploration they ' ll be very useful

    答：除非用某些能被大氣層吸收的無線電波段，否則在太空軌道站用無線電進行通訊並不怎麼特別合適。但作為探險活動從那裡出發倒是非常合適的。
  14. Ground penetrating radar or georadar, is a new no destroying detection instrument with rapidly developing in recent years. it is applied to engineering, environment, archaeology and other aspects. data processing ' s theories and methods are one of the key aspects in gpr researching, because these are useful to picking up parameters in reflection wave including amplitude, phase, frequency and so on

    數據處理（包括濾波、反褶積、偏移等）是gpr的研究重點之一，其目的是壓制隨機的不規則的干擾波，以最大可能的解析度在探地雷達剖面上顯示反射波，提取反射波的各種有用參數（振幅、相位、頻率等）來幫助解釋。
  15. Although the approximate wave function is qualitatively useful, it is gravely lacking in quantitative accuracy.

    雖然近似的波函數是定性地有用，然而它嚴重的缺少定量的準確性。
  16. The sharp acceleration turns the traveling electron wave into a plane wave, like a nice regular pulse of an electron beam with an extremely short wavelength ? exactly the kind of beam useful for imaging

    急遽的加速會讓行進中的電子波轉變為平面波，就像一道波長極短的電子束所形成的有規律脈沖，完全符合造影所需。
  17. High frequency system in high power resources of millimeter - wave radiation, such as resonator system, it ' s capability performs a vital role in whole high power microwave system. computer simulation is necessary in design process. basing on academic analyzing, simulation of resonator system with computer assistant tools will be very useful to optimize the apparatus designing

    高功率微波源中的高頻系統，如諧振腔系統等，其設計性能對整個高功率微波系統起著至關重要的作用，設計過程中的計算機模擬亦是必不可少的。
  18. In the area of elasto - plastic dynamic analysis of frame with friction energy dissipation, the design - oriented nonlinear seismic response time history analysis method for frame with friction energy dissipation has been set up. and the corresponding program idaff is developed using visual c + + language ; the analytic solution of a single - damped - story braced frame with friction energy dissipation under the sine wave excitation has been give ; besides these, a vibration reduction analysis of multi - story frame with friction energy dissipation has been given in the paper and some useful conclusions have been drawn

    在摩擦耗能框架結構彈塑性動力分析方面，本文建立了面向設計的摩擦耗能框架結構非線性地震反應時程分析方法，並利用vc + +編制了相應的程序idaff ；給出了帶有摩擦耗能器的有阻尼單層框架在正弦波激勵下反應的解析解；同時本文從多自山度的角度出發對摩擦耗能框架的影響因素進行分析，得出相關的結論。
  19. In order to adapt the development from the mpm to the mmpm, this paper has done some exploringly research on the milli - meter wave equalizer and proposed a circuit template that can carry the power equalizer in ka band out. this thesis has proved the feasibility of realizing the milli - meter wave power equalizer used this circuit template by the way of computer simulation and experiment, and finally concludes a useful method for designing the milli - meter wave power equalizer

    為了適應微波功率模塊mpm向毫米波功率模塊mmpm的進一步發展，本論文對毫米波功率均衡器進行了探索性的研究，提出了一種在ka波段實現功率均衡器的電路拓撲，並用計算機模擬和實驗證明了此種拓撲結構實現毫米波功率均衡器的可行性，最終歸納出一種切實可行的毫米波功率均衡器的設計方法。
  20. In order to analyze the bottleneck in detail, cumulative curves of vehicle count ( ccvc ) and traffic wave theory ( twt ) are summarized, with the character and application scope analyzed. on the basis of these, traffic simulation method is presented, which overcomes the defects of both methods mentioned above and is therefore useful

    為了對定位出來的交通瓶頸展開詳細研究，本文在總結車輛到達曲線法以及交通波理論兩種方法的特點和應用范圍的基礎上，提出了交通模擬分析法，該方法克服了前面兩種方法的缺陷，具有較強的實用性。
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