控向二極體 的英文怎麼說
中文拼音 [kòngxiàngèrjítǐ]
控向二極體
英文
steering diode-
It was restaurant industry graven topic that that of that of from input / output angle said, how advance restaurant kernel ability to compete, with the purpose of advance business economic benefit, as soon as possible brought return, accelerating demonetization end, abaft experience know clearly near twenty year stodgy state look forward to reform mechanism, our state hotel industry be around by babyhood trend maturity, by seller ' s market trend buyer ' s market, such transit should make part rational consumer enjoy to good value for money, too brought ought to part superficial restaurant taste to inevitable ; the government owned restaurant at multinational restaurant bloc and civilian battalion restaurant enterprise " dual impact down, calendar by know clearly reform of monetary system cum bank commercialization, market open cum solution control, market cum competitive mechanism three phase, owing to planned economy belated issues, structure irrationality wrought a matter of and overlapping investment wrought a matter of wait threefold cause, make government owned restaurant at market competition middle gradualness forfeiture competitive edge, in progression appearance hot water, how advance government owned hotel competitive power a matter of, toward me state tourism possess strong operation significance, hunan lotus hotel namely same family pole tool on government owned three stars level hotel behalf of the for the last years, by way of hotel industry occupy quite specific gravity
從投入產出的角度講，如何提高飯店核心競爭能力，以達到提高企業經濟效益，盡快產生回報，加速貨幣回籠的目的，是飯店業嚴肅的話題。在經歷了近二十年步履艱難的國企改革歷程后，我國飯店業已開始由幼稚走向成熟，由賣方市場走向買方市場，這種轉變將使得部分理性的消費者享受到物有所值，也使部分膚淺的飯店品嘗到必然的失敗；近十年來，作為飯店業占相當比重的國有飯店在跨國飯店集團和民營飯店企業的雙重沖擊下，歷經了金融體制改革及銀行商業化、市場開放及解控、市場及競爭機制三個階段，由於計劃經濟遺留下來的問題、結構不合理造成的問題和重復投資造成的問題等三方面的原因，使得國有飯店在市場競爭中逐漸喪失競爭優勢，相繼出現困境，如何提高國有飯店競爭力的問題，對於我國旅遊業具有強烈的現實意義，湖南芙蓉賓館就是一家極具代表性的國有三星級飯店。Based on consider hereinbefore, this dissertation discusses several aspects on the problem of the sustainable and optimum exploitation of groundwater resources as follows : ( 1 ) reviewed entirely the origin and evolvement of the concept " sustainable development ", stated and commented the study status in queue on " sustainable development " around national and international range, thorough discussed the science connotation about the concept " sustainable development " ; ( 2 ) looked back and commented across - the aboard some furthest basic concept and proposition related to groundwater resources, put forward self opinions on a few existent mistake points of view and chaos understandings ; ( 3 ) expatiated entirely on the content and meaning of the theory of changeable groundwater resources system, contrast with the traditional methods of groundwater resources calculation and evaluation, combined example to show the application of this theory ; ( 4 ) thorough analyzed the difficult and complexity to forecast the groundwater resources, fully stated the traditional methods of groundwater resources forecasting, pointed out the characteristic and applying condition of these forecasting method, introduced the main ideas and methods of wavelet analysis developed recently, and the matlab software be known as the fifths era computer language, and its accessory wavelet analysis toolbox, applied these methods and tools to analyze the groundwater dynamic curve, adopted the b - j method and morte - carlo method, combined with the theory of changeable groundwater resources system, discussed the new view on the forecast of groundwater resources ; ( 5 ) synthetically analyzed the characteristics and limitations of the present all kind of groundwater manage model, combined mathematical programming mathematical statistics random process and the theory of variation system of groundwater resources on the unite optimum attempter of surface water and groundwater, emphasized how to make the model more nicety, more simple, more practicality ; ( 6 ) analyzed the inside condition and outside condition to assure the sustainable and optimum exploi tation of groundwater resources, the inside conditions are the follows : correct resources idea, scientific methods of resources calculation and evaluation, credible forecast methods of resources, exercisable measures of resources management, the outside conditions are the follows : the development idea of high layer, the transform of manage system, the matched policy and rule of law, the adjusted of economy lever, the improve of cultural diathesis, the boosting up of water - saving consciousness and detail measures, the control of population rising, the prevention and cure of water pollute, the renew and rebuild of ecology ; ( 7 ) scan the sustainable and optimum exploitation of groundwater resources from the high level of metagalaxy, earth system science, and philosophy ; lint out the more directions on groundwater resources
基於以上考慮，論文主要從以下幾方面對地下水資源可持續開發問題進行了比較深入的探討：全面回顧了「可持續發展」概念的由來與演變，對國內外「可持續發展」的研究現狀進行了述評，並對「可持續發展」概念的科學內涵進行了深入探討；對涉及地下水資源的一些最基本的概念和命題進行了全面的回顧和評述，對目前仍然存在的一些錯誤觀點和混亂認識提出了自己的見解；全面闡述了地下水資源變值系統理論的內容和意義，並與傳統的地下水資源計算評價方法進行了對比分析，結合實例具體說明了方法的應用；深入分析了地下水資源預測預報工作的極端重要性和復雜性，對傳統的地下水資源動態預測方法進行了全面的評述，指出了各類預測預報方法的特點及適用條件，對最近二十多年剛發展起來的小波分析技術的主要思想和方法及其應用范圍，以及號稱第五代計算機語言的matlab軟體和附帶的小波分析工具箱進行了介紹，並應用於地下水動態過程線的分析，採用時間序列中的b ? j法，蒙特卡羅方法，與地下水資源變值系統理論相結合，探討了地下水動態資料分析和地下水資源預測預報的新思路；綜合分析了現今各類地下水管理模型的特點及缺陷，將數學規劃、數理統計、隨機過程等與地下水變值系統理論相結合進行地表水地下水或多水源的聯合優化調度，使模型更準確、更實用；對保證地下水資源可持續開發的內部條件和外部條件進行了分析，內部河海人學博卜學位論文前言、摘要、目錄條件主要是正確的資源觀，科學的資源計算與評價方法，可靠的資源預測預報技術，可操作的資源管理措施，外部條件主要是高層發展思路、管理體制的變革、配套的政策法規、經濟杠桿的調節、人文素質的提高、節水意識的增強及具體節水措施、人口增長的控制、水體污染的防治、生態的恢復和重建等;從宇宙科學、地球系統科學及哲學的高度審視地下水資源的可持續開發;指出了地下水資源可持續開發的進一步研究方向。The catv charge and control system is mainly composed of the management software 、 the header data modulator and the terminal charge and control equipment. i am responsible for design catv charge and control equipment and test system. the header data modulator is used to encrypt the control single from computer and transmit it into the appointed frequency. the terminal charge and control equipment demodulate out the control single from data modulator and transmit it to the addressing control part, where the demodulated fsk single is received and well - handled by the cpu unit, decode the unauthorized signals and deliver it to the shut point, shut point make use of capability of wideband anf characteristic of shut, then the signal of illegal customer will be turn off and vice versa, the legal customer can receive the normal signal
前端數據調制器完成對計算機輸出的控制信號加密處理，將指令碼載送到一指定頻率點。終端收費控制器解調出控制信號，送至單片機尋址控制部分。單片機尋址控制部分接收經fsk數據解調器送來的信號，送入cpu單元后，解出不授權信號，然後向關斷部分送入信號，關斷部分利用pin二極體的寬帶工作能力以及關斷特性，實現對非授權用戶或者非法用戶的信號關斷，使之不能正常收視，繳費用戶進行開通正常收視，達到控制用戶通道的管理。Compared with those converters that need an auxiliary switch to make the main switching device working in soft - switching condition, the converters this paper present, are simple, easily controlled and cost less, but still maintain the merits of soft - switching for the main switching devices
這些變換器與那些需要輔助開關來實現主開關的軟開關工作的變換器相比，具有結構簡單、易於控制、成本較低的優點。所提出的新型功率因數校正軟開關變換器除具有以上優點外，還能有效解決二極體的反向恢復所帶來的問題。分享友人