wave attenuation 中文意思是什麼

wave attenuation 解釋
波的衰減
  • 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...
  • attenuation : n. 1. 變薄，變細。2. 減少，減弱。3. 稀釋。4. 【物理學】衰減。
  1. In determining the attenuation for an areal array we must specify the direction of the wave travel.

    在測定一種面積組合的壓制性能時，我們必須明確波的傳播方向。
  2. It make the principle formula become simpler and more practical. by the attenuation regulation and distributing character of stress wave under the linear charge blasting, the paper bring forward the idea that the columniation stress wave can be regarded as cylinder stress wave, the end stress wave as spherical wave. the perfect stress attenuation formula in radical direction is established in complete elastic medium

    根據條形藥包爆破應力波分佈特徵及衰減規律，提出了可將條形藥包爆破柱部應力波當作柱面波、端部應力波當作球面波處理的研究方法：建立了理想的完全彈性介質中球藥包和條形藥包爆破徑向應力衰減方程。
  3. However, the radio wave can then reflect back of the earth and become refracted again to return earthwards once more. this can sometimes occur a number of times with little attenuation but some fading

    在雷達探測中可以利用此方法，初步確定雷達回波中哪個地區會出現陷獲折射回波，為進一步分析從雷達回波反演大氣層結提供了可能。
  4. The theory of noise attenuation by patterns is the same whether applied to the shot or the geophone end of the wave trajectory.

    應用組合方法壓制噪聲的原理，不論對炮點還是對栓波器波的軌跡終端都是一樣的。
  5. The key technique include nip signal ' s generation, serial port 422 communication, control system data acquisition and processing, stationary wave ratio of antenna, sending and receiving signal ' s attenuation of antenna and so on

    其關鍵技術包括nip信號產生， rs - 422串口通信，控制系統各模塊數據採集和處理，機載天線駐波比及收發信號衰減測量等。
  6. Thereinto, the correction of attenuation is a big problem in millimeter - wave cloud radar detection

    但是，毫米波雲雷達探測，必須考慮的問題之一是大氣衰減訂正。
  7. Evaporation ducts, or tropospheric ducts in general, can guide radio waves to distances far beyond the horizon with less attenuation, and then severely impair some certain radio wave system

    以蒸發波導為代表的對流層大氣波導傳播，可使電波在較小的衰減下沿波導傳播得很遠，從而嚴重影響合適的無線電系統。
  8. Measurement of the longitudinal wave velocity and attenuation for underwater acoustical materials - pulse - tube method

    水聲材料縱波聲速和衰減的測量脈沖管法
  9. X4 ? gridding attenuation and 2 ? x2 ? gridding group velocity are calculated respectively, based on the attenuation and velocity, the distribuation of rayleigh wave quality factor qr are yielded finally. ( 3 ) building the s - wave quality factor og3d structure of the continental crust and upper mantle of china area

    為此把中國大陸區域劃分成4 4網格和2 2網格，利用lsqr方法分別進行衰減系數和群速度網格化反演，得到4 4單元格的衰減系數分佈和2 2單元網格的群速度分佈。
  10. Two of the most predominant characteristics of surface wave are dispersion and attenuation which are the effective tools to study the velocity structure and viscidity structure of the earth interior

    頻敵和衰減是面波傳播中的兩個基本特徵，利用面波頻散和衰減可以有效地研究地球內部速度結構和粘彈性結構。
  11. When electrical parameter is changd by wet tunnel wall, electromagnetic wave propagation attenuation will vary

    摘要礦井隧道壁濕潤會引起電參數改變，從而使電磁波傳播衰減率發生變化。
  12. Abstract : this paper presents a new - type floating breakwater with the structure of “ duckweed ”. some circular wooden blocks were flexibly tied together and flat located on water surface. a series of experimental investigation were carried out. the experimental results show that 1 ) there are wave attenuation characteristics of the new - type floating breakwater ; 2 ) by comparing the two installation styles, the wave attenuation effectiveness anchored on the sea bed is better than that of anchored on the sea shore

    文摘:模仿水生植物「浮漂」的結構形式，設計一種新形式的防波堤.將多塊圓形木板柔性連接成一體，平鋪於水面，對其進行了一系列的消浪效果的初步試驗研究.試驗結果表明，該結構具有消浪性能，並且其固定方式採用系泊於水下的消浪效果優于系泊于岸邊的
  13. Attenuation of hydromagnetic wave

    磁流體波的衰減
  14. According to these accomplishments, several techniques are expounded emphatically in this paper, including 3d refraction statics, coherent noise suppression by prestack wave field separating ( prestack fx noise attenuation ), 3d prestack multiple domain random noise attenuation, multiples attenuation, nmo of unsymmetrical hyperbola, dynamic replacement of wave equation, surface - inconsistent residual static, super bin stacking, poststack depth migration and prestack depth migration. all the techniques have been applied in seismic processing of 2d, 3d and wide - line profiling and obtained good results

    本文根據項目組研究成果，重點閘述了三維折射波靜校正技術，疊前波場分離相干噪音壓制方法（疊前fx去噪） ，疊前三維多域隨機噪音衰減技術，多次波衰減技術，非對稱雙曲線動校正技術，波動方程動態替換技術，非地表一致性的剩餘時差靜校正技術，超面元迭加處理技術，疊后深度偏移處理，疊前深度偏移處理等。
  15. The numerical simulations show that the phase plane and amplitude plane in orthotropic fluid - saturated porous media is not paralleled to each other any more though the dispersion caused by the fluid is omitted. it is one kind of non - homogeneous wave. the maximum attenuation is no longer

    指出由於介質的各向異性，盡管忽略了流體粘度引起的粘度耗散，正交各向異性液飽和多孔介質中瑞利波的相平面和幅平面亦不再重合，為非均勻波，最大的衰減不再沿波傳播方向。
  16. Attenuation mechanism and application study of high impulse electromagnatic wave propogation of gpr

    探地雷達高頻電磁波傳播衰減機理與應用實例
  17. This paper describes the definition of “ return wave attenuation ” and “ reflect attenuation ”, introduces theoretically the meaning of “ return wave attenuation ” on view point of power, points out the difference between “ reflect attenuation ” and “ return wave attenuation ” and demonstrates the test connection used as “ return wave attenuation ” measurement before being really “ reflect attenuation ” measurement

    論述了「反射衰耗」與「回波衰耗」的定義，從理論上推導出「回波衰耗」在功率角度上的含義，闡明了「反射衰耗」與「回波衰耗」之間的區別，也論證了歷來作為「回波衰耗」測試的試驗接線實際是「反射衰耗」測試的試驗接線。
  18. Test method for bulk acoustic wave attenuation of piezoelectric lithium niobate crystals

    壓電鈮酸鋰單晶體聲波衰減測試方法
  19. ( 2 ) calculating the gridded rayleigh wave attenuation factor y and group velocity. the lsqr algorithm is used to inverse the attenuation factor and group velocity under 4 ? x4 ? gridding and 2

    （ 2 ）進行rayleigh波衰減系數、群速度網格化純路徑衰減反演計算，得到網格單元純路徑衰減系數和群速度分佈結構。
  20. This is of very important significance to understand the material property and geodynamic of corresponding area, the surface wave attenuation mechanism and the inversion algorithm of attenuation and s - wave quality factor are discussed systemically in this paper. some important fruits and understanding are resulted from the the crust and upper mantle tomography of china. ( 1 ) calculating of the rayleigh surface wave attenuation factor y

    本文首先探討了面波衰減的機理，對面波衰減和s波品質因子q _反演的計算方法進行了系統的研究，並對中國大陸地區地殼上地幔q _三維結構進行層析成像，取得了以下重要成果： （ 1 ） rayleigh面波衰減系數計算。
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