one way screen 中文意思是什麼
one way screen
解釋
單向視幕-
Author, starts from the one - way wave equation of wavefield extrapolation, research the relationship and transform condition of wavefield extrapolation operators, and propose the steady variational reference slowness rytov approximation general screen wavefield extrapolation operator ( vrselrf ) which can adapt severe lateral velocity variations, in frequency - wavenumber domain, and the improved wavefield extrapolation scheme, also give the method to improve the computation efficiency. the achievement establishes the theoretic basis of the whole research
首先，從波場延拓的單程波方程出發，系統地研究了頻率波數域的波場延拓運算元之間的相互關系和轉換條件並在此基礎上提出了能適應劇烈橫向變速的頻率波數域穩定的變參考慢度rytov近似廣義屏波場延拓運算元（ vrselrf ）和部分波場延拓改進方案及提高運算效率的措施，為整個研究打下理論基礎。 -
From 1920s up to now, various techniques and methods for wave field decomposition, propagation and migration / imaging have been well developed, such as the kirchhoff asymptotic method, frequency - wavenumber domain phase - shift and phase - shift - plus - interpolation methods, and the one - way wave equation based phase - screen and generalized screen methods, etc. wave field extrapolation in these methods is implemented based on the expansion of the wave field by sets of basic functions like spatial fourier harmonies, modes, and green ' s functions
自上個世紀二十年代至今，波場分解、傳播與偏移成像技術經歷了將近一個世紀的發展，形成了多種不同的方法，如kirchhoff波動方程高頻近似解方法，頻率-波數域的相移（ phase - shift ）方法和相移-內插（ pspi ）方法，以及在混合域中基於單向波動方程的相位屏、廣義屏方法等。 -
Realize long - range way that control we adopt at present management convenient, run cost low carrying on long - range to control through public telephone network relatively, already original each led display screen 3 parts of system on the spot ( display screen, controller, computer ) change into whole system adopt two computer can control and show display screens and controllers of place all, join through public telephone network controller realize go on and control and realize and show to led display screen content upgrade, realize computer to each display screen long - range to control and upgrade content transmit, increase modem and one design with special - purpose on the modem and led interface board of display screen of joining fully and newly at hardware of system, this is to make up into a special - purpose long - range controller the controller in the modem and original system
實現遠程控制的方式我們採用目前管理方便，運行成本較低的通過公共電話網路進行遠程控制，既將原來的每個led顯示屏系統的3個部分（顯示屏、控制器、計算機）改為整個系統中採用兩臺計算機就可以控制全部顯示地點的顯示屏和控制器。通過公用電話網連接控制器實現對led顯示屏進行遠程控制和顯示內容的更新，從而實現計算機對每個顯示屏進行遠程控制並對顯示內容進行更新。在系統的硬體上增加了數據機和一塊全新設計專用於連接數據機和led顯示屏的介面板。 -
Simple manipulator may do not outer connect signal or connect one - way measure signal namely can direct control operation signal output by keystroke operate, apply to differential kinds of a variety of valve manual locating control, display screen indicates measured value or output percentage, which can be self - set by customer
Wp - ks805系列智能雙迴路串級pid調節控制儀採用先進的微處理器進行智能控制。具有多種輸入信號切換功能和雙屏數碼雙光柱顯示型式。可選擇rs232 rs485串列通訊介面，並可實現多機通訊。 -
Different from the scattering theory used in the derivation of conventional generalized screen propagator, in this paper, a high order formula of generalized screen propagator for one - way wave equation is proposed by using the asymptotic expansion of single - square - root operator
摘要不同於常規廣義屏傳播運算元的推導中使用散射理論，本文利用單平方根運算元的漸近展開，推導出了單程波方程廣義屏傳播運算元的高階表達式。
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