表面波速 的英文怎麼說

中文拼音 [biǎomiàn]
表面波速 英文
surface wave velocity
  • : Ⅰ名詞1 (外面;外表) outside; surface; external 2 (中表親戚) the relationship between the child...
  • : Ⅰ名詞1 (頭的前部; 臉) face 2 (物體的表面) surface; top 3 (外露的一層或正面) outside; the ri...
  • : 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...
  • : Ⅰ形容詞(迅速; 快) fast; rapid; quick; speedy Ⅱ名詞1 (速度) speed; velocity 2 (姓氏) a surna...
  • 表面 : surface; superficies; boundary; face; rind; sheet; skin; outside; appearance
  1. Superficially it is quite safe to phase advance an accelerometer signal as the error signal has been filtered by the servo and the alrframe transfer function.

    上看,因為誤差信號已被伺服機構和彈體傳遞函數濾,所以讓加度計信號經相位超前網路是不會有問題的。
  2. The relationship between capacitance and corrosion conditions in the enlargement of tunnels justifies the latter competition mechanism the varied etching conditions were implemented by enhancing the passivating characteristics and viscosity, changing the a13 + concentration, temperature of etchants and current pulsation. passivating acid in the etchant is conducive to the instant passivation of exposed areas on the foil surface, and hence sustains the balance of competition between aggressive anions and passivators, providing pit nucleatiori sites continuously

    通過侵蝕液中添加草酸、硫酸、乙二醇,改變侵蝕液al ~ ( 3 + )濃度和電流紋等方法,研究了不同的侵蝕條件對隧道孔形貌和比容的影響,結果明:草酸和硫酸既保護了鋁箔又促進了隧道孔孔壁的迅鈍化,增加發孔密度。
  3. Being a sort of new principle micromotor in the fronitier of science. the ultrosonic motor ( usm ) is developed at recently twenty years. utilizing the stator surface particle elliptical motion excited by piezoceeramics, the usm is drived by friction force between the stator and rotor. compared with the conventional electromagnetic motor, the ultrasonic motor has the following features : high speed, high holding torque when power is off and so on. because of it ' s characteristics, the ultrasonic motor has obtained some widespread application in robots, precise instrument, house electronical appliance, sapceecraft automobile and micromechanism

    超聲電機( ultrasonicmotor )是近二十年來發展起來的一種新原理電機,其原理不同於傳統的電磁型電機,它是利用壓電陶瓷的逆壓電效應使定子的質點產生橢圓運動,通過定子和轉子之間的摩擦力驅動轉子運動。這種新型的電機與傳統電磁電機相比,具有響應快、不受電磁干擾、結構緊湊、低、大扭矩、斷電自鎖等優點,因而在微型機械、機器人、精密儀器、家用電器、航天器、汽車等方顯示出廣泛的應用前景。
  4. Second, the imaging model built here has taken into account the tilt modulation, the hydrodynamic modulation, and current modulations of radar cross section. consequently, it has realized the imaging simulation of four kinds of wakes with the same imaging model. third, the orbital velocity of ocean wave was considered as the basic dynamic factor, and the imaging model calculates the influence on raw data by the wave m ovement according to the orbital velocity

    該模型的主要特點是: ( 1 )它採用了三尺度復合模型的思想來計算海的電磁散射,考慮了中等尺度對紋的進一步調製作用,彌補了傳統雙尺度模型的不足; ( 1 )它考慮了海浪的傾斜調製作用、流體動力調製作用和流場對雷達截的調製作用,實現了用統一的模擬模型對四種艦船尾跡特徵進行成像模擬; ( 3 )它把海的軌道度作為基本的動態成分,並依此來考慮海運動對sar回信號的影響。
  5. At linear stage, the theoretical growth rate for the rt instability in cylindrical and spherical geometries was enhanced ( or reduced ) due to the decrease ( or increase ) in the perturbation wavelength during an implosion ( or explosion ). even in the absence of an acceleration the perturbation could grow in the convergent geometries. the amplitude growth rate was proportional to the cube of the convergent ratio in spherical geometry and to the square of the convergent ratio in cylindrical geometry

    在線性階段,已有的研究明:一方,在內爆(或外爆)過程中擾動長變短(或變長) ,使得不穩定性的增長率變大(或變小) ;另一方,即使不存在界度,界運動仍然可能導致擾動幅度的增加,柱幾何中擾動幅度的變化率正比于界收縮比的平方,球幾何中擾動幅度的變化率正比于界收縮比的三次方,並且擾動幅度的變化方式(增加或減少)只與初始時刻擾動幅度的增長率(正或負)有關,而與界的運動方向(向內或向外)無關。
  6. What ' s more, we put forward some experienced formulas on the basis of the cortical analysis. the result of the research show that by installing diffluent piers with low ridge, we can eliminate the root of oscillatiny water jump, perfect the energy dissipation effect of water jump, also, we can improve the flow condition of down - stream. the fact that the main flow of down - stream is in the middle, not only effectively lower the speed of the bottom flow in the ridge rear, alleviate the erosion to the river bed, but also avoid the heavy wave resulted from the main flow in the surface, thus improve the surface wave of down - stream obviously. we can work out the body style parameters of diffluent piers with low ridge according to the project flow condition and experience formulas, and then reckon the down - stream surface wave condition for the protected building of the down - stream bank

    研究結果明:設置低坎分流墩后,消除了擺動水躍水舌擺動的根源,提高了水躍的消能效果,改善了下游水流流態。下游水體的主流在中部,既有效的降低了坎后水流底流,減輕水流對河床的沖刷,又避免了主流位於導致浪過大的結果,下游的水浪明顯得到削減。依據經驗公式,可根據工程水流條件設計出低坎分流墩的體型參數,進而估算出下游沿程的水浪,為下游岸邊的砌護提供依據。
  7. The result shows that with the addition of rare earth elements, ultrasonic irradiation and magnetic field, the chemical component, surface configuration, microstructure and properties of electroless co - ni - b and co - fe - b alloy changes remarkably. such kind of change can be described as the followings. firstly the depositing speed of electroless alloy bath is raised while the polarizability and cathodic overpotential are reduced ; secondly the surface quality of the alloy coating and adhesion of the coating and matrix are improved ; thirdly in the coatings the content of the elements in the transient group increases, but the content of cobalt decreased ; fourthly the amorphous structure is transformed to microcrystal structure and polycrystal structure ; fifthly the microhardness and wear resistance of the coating are enhanced ; sixthly coercitive force is reduced, and magnetoconductivity of the coating is increased ; lastly the magnetic intensity of the coating increases with the addition of energy and light rare earth elements such as ce, la and decreases with the addition of heavy rare earth elements such as y. on the other side, when the alloy coatings passes through the heat treatment under the temperature of 250 or 500, their properties will change

    結果顯示化學沉積co - ni - b 、 co - fe - b工藝在稀土元素( ce 、 la 、 y 、 dy ) 、能量(超聲、磁場)介入后,沉積過程、合金成分、鍍層形貌結構和性能都有顯著變化,現在:鍍液的陰極極化過電位和極化度降低,沉積度提高;鍍層的結合力、質量改善;鍍層中過渡族元素的含量增加,輕元素硼的含量降低,同時證實了稀土元素與過渡族元素共沉積的可能性;鍍層的顯微結構由非晶態向微晶和多晶態轉變;鍍層的顯微硬度與耐磨性提高,力學性能優化;鍍層的矯頑力降低;磁導率提高;鍍層的磁化強度在能量(超聲、磁場)和輕稀土元素ce 、 la介入后提高,重稀土元素y介入后降低。
  8. Generally, tidal bore is wave alignment moving upstream estuary, and its surface will break when the wave alignment is strong, which leads to water roll tracing the source. the velocity, which is between small - disturbed wave velocities before tidal bore happens and the one after tidal bore happens, increases with the ratio of tidal bore height to the water depth in wave front

    涌潮一般是向河口上游推進的列,強度大時,破碎,進而發展成溯源推進的水滾,其傳播度隨涌潮高度與前水深比值增加,大小介於涌潮前後小擾動之間。
  9. On the premise that the basal transducer layout was designed according to the requirements of deep - sea exploring surroundings and technology on the basis of the hardware structure and data collecting ways of interferometric sonar, the echo signal by energy relativity search is analyzed and calculated, altitude data of the tiny terrain on the seabed under real - time irradiation of ultrasonic is gained as to provide parameters of best cutting depth for intellectualization of the seabed mining vehicle timely and promptly

    摘要在相干聲納硬體結構及數據採集方式的基礎上,結合具體的深海鈷結殼探測環境和技術要求,確定了換能器基本布局,探討了信號採集與處理方法,利用能量相關搜索法對回信號進行分析和計算,得出超聲實時照射下的海底微地形高程數據,為海底采礦車智能化開采提供實時、快的最佳切削深度參數。
  10. The influences of optical feedback and external cavity length on the laser output are studied, and the relation between fluctuations of speckle signal and the transverse velocity of rough surface is discussed

    分析了隨機變化的反饋強度與外腔長度對激光光譜特性的影響。模擬了散斑干涉信號的動與粗糙橫向移動度的關系。
  11. Theory analysis shows that surface roughness ' amplitude, wavelength, and texture on the bearing contact surface have a prominent effect on high - speed cylindrical roller bearing elasto - hydrodynamic performances ; reasonable choice of surface roughness ' amplitude, wavelength, and texture may improve effectively high - speed cylindrical roller bearing elasto - hydrodynamic performances

    理論分析明:軸承接觸粗糙紋理方向、粗糙度幅值及其粗糙度長對高圓柱滾子軸承的彈流特性具有顯著的影響;合理選擇軸承接觸粗糙度幅值、長及紋理方向,可以有效改善高圓柱滾子軸承的彈流特性。
  12. The detailed experimental investigation of the distribution and evolution of the mean velocity profile were executed. the signal of instantaneous velocity, the energy spectra of velocity and wave characteristics in the boundary layer have been analyzed

    對局部加熱的水平平板下邊界層內的時均度的演化規律進行了詳細的測量,同時對度脈動信號以及度能譜進行了分析,並對邊界層內的動特性進行了研究。
  13. Surface flashover across the insulators in vacuum is the major limitation of the performance of the high power system, such as high power microwave tube, pulse power switch, high - energy linear accelerator, etc. flashover studies are of considerable importance in many applications. alumina ceramics are used widely in vacuum insulation system. the flashover and charging performance have been systematically investigated on alumina ceramics in vacuum under pulse voltage ( 0. 7 / 4 ^ 8 )

    真空中絕緣子沿閃絡現象是制約高功率微管、脈沖功率開關、高能粒子加器等系統性能的主要原因,這是因為真空中絕緣子在一個比自身及相同真空間隙擊穿電場低得多的電場下就發生了閃絡的緣故,研究真空中絕緣子沿閃絡現象及其形成機理對于改善和提高系統性能有重要意義。
  14. In the aspect of saw devices, for zno has high coupling factor, and aln has high saw velocity, if zno thin film was deposited on aln thin film, the multiplayer film has not only high coupling factor, but also has high saw velocity, which was suitable for saw of high frequency

    在聲器件應用方,由於zno具有很大的機電耦合系數,而aln的聲傳播度較高,因此若zno和aln相結合,則不僅具有大的機電耦合系數,而且具有很高的聲表面波速度,這非常適合於製造高頻聲器件。
  15. The conclusions are as follows : the ultrasonic intensity is proportion to the laser intensity ; the ultrasonic induced by a laser line source has much more advantages than by a laser point source, such as stronger energy, higher snr, more directivity and shape ; the intensity of cfpi ' s output signal is linear with ultrasonic vibration velocity, and is effected by incidence angle and scattered angle ; snr will increase by reducing cfpi ' s bandwidth, reducing incidence angle, increasing cavity ' s length and reflectivity

    在分析點光源激勵聲機理的基礎上,求出了線光源激勵的超聲振動的位移達式,發現線光源激勵的近場區具有形好,信噪比高,指向性好,幅度強等特點。通過理論推導,得出共焦fabry - perot干涉儀的輸出光強除了與樣品的振動度成正比,並與入射角和散射角有關;適當減小cfpi的帶寬,增加腔長,增大鏡反射率,或者減小檢測入射角都可以提高系統的信噪比。
  16. Current. in order to make diffluent piers with low ridge to be popularized and applied, the surface wave of low fr. current is chosen as the research object. we measure the surface wave elements and the velocity distribution of various diffluent piers scheme by the experiment of physical model. we also analyze the average wave height, the the average value of the square of wave, unit width of the wave ' s energy, the probability density distribution of wave height, and the power chart character, so as to reveal the weakening wave mechanism of the diffluent piers

    低fr水流的核心是浪問題,為了低坎分流墩的推廣應用,本研究以低fr水流的浪作為研究對象,通過物理模型試驗,對各種分流墩方案消能工的下游水浪要素、流分佈進行測試,分析低坎分流墩下游浪的平均高、均方根、單寬能、高概率密度分佈及功率譜特性變化規律,從而揭示了低坎分流墩的削機理。
  17. A square sensing area was formed upon each of the saw propagation paths using photoresist. when some kind of material deposits on this area, the saw propagation velocity will decrease due to the mass - loading effect, causing a shift in the device ' s oscillation frequency, which gives indication of the mass deposited. the dual - path architecture, one for sensing and one for reference, was used to compensate for the disturbance of temperature

    利用光刻工藝在每個聲傳播路徑上構造了一個方形質量沉積區,當有物質沉積到該區時,由於質量沉積效應,聲發生變化,使以延遲線作為反饋迴路的振蕩器的振蕩頻率發生變化,並通過這一變化反映出沉積物的質量。
  18. To explore the dynamic properties of landfills further more ; rayleigh wave tests on landfills are performed by a self - developed rsa system. by means of frequency analysis ; shear wave velocity varied with depth curves of landfills are obtained

    為了解填埋體的動力特性,本文利用自行研製的rsa測試系統做了填埋場的瑞利試驗,並用對結果進行了頻譜分析,獲得了填埋場剪切隨深度的變化。
  19. Surface acoustic wave ( saw ) device is an advanced analog signal processing device by means of acoustic wave character. since saw technologies is applied thirty years ago, saw devices accelerate growth because of their broad use and in the meantime their performance are raised constantly. because its high performance, light weight and good consistency, it is widely used in modern microwave communication and radar system and so on

    ( saw )器件是一種新型的利用聲特性的模擬信號處理器件。聲技術自誕生至今三十多年來,因其用途廣泛而得到迅的發展,同時其性能也在不斷地提高。由於saw器件性能優良、重量輕、體積小、一致性好,廣泛地應用於現代微通信、雷達等系統中。
  20. Surface acoustic wave is a elasticity wave on the solid substrate. its velocity has 105 lower than light ’ s

    是在介質傳播的彈性,通常它具有比電磁慢五個數量級的
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