波脈沖 的英文怎麼說
中文拼音 [bōmàichōng]
波脈沖
英文
wave impulse-
Each burst of waves lasts only about a millionth of a second.
每個電波脈沖群僅持續約一百萬分之一秒的時間。To destroy or cripple power and communications lines leading into the target, u. s. forces may need to physically bomb or to employ the pentagon ' s e - bomb, which emits a powerful microwave pulse
要毀掉或破壞通往目標的電力與通訊線路，美軍可能需要實際炸毀或利用五角大廈開發的電子炸彈，這種炸彈可發射超強的微波脈沖。In the light of the pulse width of the radar wave, this paper deals with the difference and the relationship between the vertical resolution and the transverse resolution of the ground - penetrating radar, indicates the influence of the noise upon the resolution and, with practical examples, points out that the digital handling of the signal can greatly improve the resolution of the radar
摘要從雷達波脈沖寬度出發，闡述垂直解析度與橫向解析度的區別和相互關系，並同時指出噪音對解析度的影響，用實例說明訊號的數字處理能大大的改善解析度。Measuring thickness by ultrasonic pulse - echo contact method
接觸式超聲波脈沖回波法測厚Sine, square, ramp, pulse, arb, and noise
正弦波，方波，諧波，脈沖，任意波和噪聲Sine, square, ramp, triangle, pulse, noise, dc
正弦波方波諧波三角波脈沖噪聲直流Sine, square, ramp, triangle, pulse, noise, arb
正弦波方波諧波三角波脈沖噪聲任意波形Shock - wave pulse recognition based on adaptive eih model
模型的激波脈沖識別So in the solution studied the hsi anode could be used in pulsed current cathodic protction system
因此，在所研究的介質中高硅鑄鐵陽機可以用於方波脈沖電流陰極保護。In relation to computers, the term is applied to a read / write head, to detector of sector marks in a magnetic disc system, and to electronic / sonic pulse converters of delay line memory
在與計算機有關時，這個術語用在磁盤系統中的讀寫磁頭、扇面標記的檢測上，以及用在延遲線存儲器的電子或聲波脈沖變換器上。A device for converting energy form one form to another. in relation to computers, the term is applied to a read / write head, to detector of sector marks in a magnetic disc system, and to electronic / sonic pulse converters of delay line memory
把能量從一種形式轉換成另一種形式的裝置。在與計算機有關時，這個術語用在磁盤系統中的讀寫磁頭、扇面標記的檢測上，以及用在延遲線存儲器的電子或聲波脈沖變換器上。This dissertation is studied the detecting distance radar based on ultrasonic pulse and the detecting speed radar based on continuity electromagnetic wave, using the theories of the detecting distance and the detecting speed of radar
測速、測距、測角是雷達最基本的功能。本文根據雷達測距原理和測速原理，研製基於超聲波脈沖的測距雷達和基於連續電磁波的測速雷達。Ultrasonic bio - instrumentation has several display modes used in medicinal field now, such as b - mode and m - mode, etc. b - mode uses the modulated brightness to represent the amplitudes of ultrasonic echoes, and the coordinates in the formed profiles correspond to positions of ultrasonic beam scans one by one
B型顯示是用亮度調制來顯示回波脈沖幅度，顯示的橫軸和縱軸與聲束掃描的位置一一對應，形成超聲切面圖像。In the section 2, firstly based on the diffusion approximation theory, the temporal characteristics of the reflectance and the transmittance were theoretically analyzed in turbid tissues ; secondly, the curves were simulated that the intensity and the pulse shape of the time resolved reflectance and transmittance versus the absorption a, the scattering s and the anisotropy coefficient g in two different boundary conditions : semi - infinite turbid media and homogeneous slab ; at last, the optical properties can be derived from the curves ; in the section 3, the conditions of ultra short laser pulses of different pulse - width and shapes has been theoretical analyzed and calculated, besides, the simulated the curves of the intensity and pulse shapes of the reflectance and transmittance in a homogeneous slab are obtained for use and future studying
第二章中首先根據漫射近似理論對超短脈沖在以生物組織為典型的混濁介質中傳輸進行了理論分析，然後對兩種邊界條件下產生的漫反射、漫透射光脈沖強度和形狀隨各光學特性參數的變化情況進行了數值模擬，最後得到了混濁介質的光學特性參數與漫反射、透射脈沖強度與形狀的關系曲線。第三章對不同形狀和脈寬的脈沖光源入射到混濁介質中產生的漫反射、漫透射脈沖的強度和形狀進行了理論分析和數值模擬，並將高斯脈沖與方波脈沖情況進行了對比，得到了各種情況的漫反射、漫透射脈沖強度、形狀與各光學特性參數的關系曲線，這對從分析脈沖形狀中提取介質的光學特性參數的信息有重要的意義。The various medium parameters have different influence on the reflection of the laser pulse. based on the diffusion approximation theory, the boundary condition of semi - infinite homogeneous media, the influence of the absorption a, the scattering s and the anisotropy coefficient g on the ultra short laser pulse of different pulse - width and shapes has been researched
論文對超短脈沖在混濁介質中的傳輸進行了理論分析和數值模擬，並在不同脈寬的高斯脈沖和方波脈沖入射到混濁介質的漫反射、漫透射脈沖強度和形狀進行了理論分析和數值模擬，得到了它們與各光學特性參數的關系曲線。The electrochemical performance of high silicon - iron anodes exerted by square wave pulsed currents ( swpcs ) was studied by electrochemical
摘要採用電化學方法和陽極消耗率評價法研究了高硅鑄鐵陽極在方波脈沖電流作用下的電化學性能。It is found from the experiment that under the conditions of peak magnetic field of 0. 57t, beam pulse fwhm ( full width of half maximum ) of 44ns, a microwave radiation pulse with fwhm 25ns and whole width of 35ns is produced, when the intensity of the guiding magnetic field rises, the peak microwave power changes little but the width of the pulse reduces. the a - k gap also has obvious influence on the microwave radiation, the stable and higher microwave output is obtained under suitable gap
實驗中還發現，在峰值磁場0 . 57t和束流半高寬44ns情況下，得到了25ns半高寬和35ns底寬的微波脈沖信號，隨著導引磁場增加，微波信號幅值基本不變，但國防科學技術大學研究生院學位論文是微波脈沖寬度會逐步減少;實驗中還發現磁場線圈位置有一定的軸向調節范圍，說明在磁場軸向分佈的一定變化范圍內，器件都可以正常工作，這對以後的永磁場系統導引的微波實驗有利。Abstract : the principal characteristics of pulse power supply with large current are described. the survey of pulse electrochemical machine and the processing technique are introduced. some application examples of pulse electrochemical machining in die - sinking are given
文摘:簡述了大電流矩形波脈沖電源的基本特點；介紹了脈沖電解機床及加工工藝概況；列舉了脈沖電解加工工藝在模具加工中的應用實例。Standard practice for evaluating performance characteristics of ultrasonic pulse - echo examination instruments and systems without the use of electronic measurement instruments
不用電子測量儀，超聲波脈沖迴音試驗制運轉性能的評估的標準操作規程Firstly, the principle of high resolution sar and theoretical imaging model were concisely introduced. pulse compression for line frequency modulation pulse signal, resolution of range direction and azimuth direction, and doppler history were discussed subsequently. in accordance with sar signal processing, range immigration was also involved
本文首先分析了合成孔徑雷達高分辯力成像機理和sar成像理論模型，討論了線性調頻脈沖信號的匹配濾波（脈沖壓縮） 、 sar距離特性、方位特性和多普勒歷史，同時針對sar成像信號處理，分析了成像處理的基本原理和成像處理中的距離遷移校正等關鍵問題。分享友人