自然波長 的英文怎麼說

中文拼音 [zìránbōzhǎng]
自然波長 英文
natural wave length
  • 自 : Ⅰ代詞（自己） self; oneself; one s own Ⅱ副詞（自然;當然） certainly; of course; naturally; willin...
  • 然 : Ⅰ形容詞（對; 不錯） right; correct Ⅱ代詞（如此; 這樣; 那樣） so; like that Ⅲ連詞[書面語] （然而）...
  • 波 : 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...
  • 長 : 長Ⅰ形容詞1 （年紀較大） older; elder; senior 2 （排行最大） eldest; oldest Ⅱ名詞（領導人） chief;...
  • 自然 : 自然at ease; natural; free from affectation
  • 波長 : [物理學] wavelength波長標準 [光學] wavelength standards; 波長測量 wavelength measurement; 波長常...
  1. The product quality faces up to enormous domestic and international markets challenge and the peasants face up to the slow increasing of their incomes. the shortage of water resource is more serious for the planted system, climatic change and low utilization ratio. cultivated land resource is reducing rapidly for nature factors and urbanization process, etc. the analysis results indicate the resour ces utilization mode in the hhh plain is still high investment, high - energy consumption, and grievous pollution

    農產品生產在我國佔有絕對優勢，但其受結構調整的影響也發生了波動性變化，其產品質量面臨著國內外市場巨大的挑戰，農民收入也面臨著增長緩慢的挑戰；水資源受種植制度、氣候變化及利用率低等多種因素的脅迫作用，嚴重短缺；耕地資源近年來大量減少，受自然及城市化進程等因素的影響，稀缺程度加大。
  2. 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。
  3. From the understanding of the conceptual framework for natural vulnerability, the paper analyzes with deep insight into the impacting factors of the natural - system to sea - level change, on the one hand, the coast would be susceptibility to the changes including the short - term sea - level changes such as tide, storm tide, el nino and the long - term sea - level rise. the overlap of this two changes would increase the coastal natural - system vulnerability

    文章從海岸自然脆弱性概念框架出發，深入分析了海岸自然脆弱性的影響因素：一方面海岸自然體系對海平面變化具有「敏感性」 ，海平面變化包括短期的海面波動，如潮汐、風暴潮、厄爾尼諾等，還包括長期的海平面上升，海平面上升和短期海面變化疊加將加劇海岸帶的「敏感性」 。
  4. When the girl is facing the coming of puberty, there is some bashfulness in her heart, but above all, it is the expectation to the future and happiness of growing that fill her whole feeling

    少女面臨著青春的來臨，這時也許在她的心中有少許羞澀，然而更多的波動來自於成長的喜悅和對未來生活的期盼。
  5. Around 40 ; the neutral curve obtained by the growth rates of the temperature fluctuation has a ringlike curve separated from the main branch of nachtsheim s calculation by velocity fluctuation at the lower grashof number side ; and its phase velocity is close to the maximum mean velocity where the critical layer of the eigenmode locates. the thermal fluctuation decays rapidly as the nondimensional frequency above 0. 4, so that it means that the coupling effect between instability wave generated by buoyancy fluctuation and velocity waves by invicid instability seems weak enough for their critical layers in the range of the nondimensional frequency

    詳細研究了自然對流邊界層中最早失穩的浮力振型的功率譜波長波速與臨界層位置等基本特徵和它為主導其他振型尚未失穩時按線性理論得到的3種相互獨立振型的振幅分佈。系統地測量了它所對應的溫度和速度漲落的振幅增長規律和中性曲線，實驗結果表明，溫度漲落的中性曲線在低格拉斯霍夫grashof數
  6. Add : no. 1 east road songjiang, jilin traffic : from the airport : 20 kilometers, from the railway station : 2 kilometers, from the city center : 1 kilometer ; the view around : century square, the south park, north mountain park, confucian temple, museum

    居高眺望，可俯視松花江兩岸風光，夏見碧水長流綠波蕩漾，垂柳搖曳清風送爽，是極好的避署之處冬觀銀裝素裹，千姿百態，聞名遐邇的吉林霧淞，大自然的鬼斧神功，令人嘆為觀止。
  7. It is about 20kilometers apart for people to stay. looking into the distance from the upper part of the building, you can see the river with green water weeping willow branches saway gentily in the dyed white snow. the ever - changing jilin frost - branch is a marvelous willow branches swaying gently in the wind. it is an excellent summer ressort

    居高眺望，可俯視松花江兩岸風光，夏見碧水長流綠波蕩漾，垂柳搖曳清風送爽，是極好的避署之處冬觀銀裝素裹，千姿百態，聞名遐邇的吉林霧淞，大自然的鬼斧神功，令人嘆為觀止。
  8. When egg cell hormone directly act on the milk secreted from hypothesis, the breast can thoroughly absorb fat and expand the sponge organization so the breast will lift slowly. according this theory, e - mini cpu nanometer underwear adopt the stimulation of the magnetized wave imitative the same formulation of the nervous system to the growth of egg cell hormone and make you have a plentiful breast

    使乳房更完善地吸收脂肪，海綿體增大，從而乳房便會逐漸隆起， e -美人微電腦納米美胸寶利用磁頻波原理，模擬神經系統同等方式的磁頻波與生物電流刺激，促進卵細胞荷爾蒙成長，使胸部重新發育，達到自然豐滿效果。
  9. There played around her mouth, and beamed out of her eyes, a radiant and tender smile, that seemed gushing from the very heart of womanhood

    她的嘴角和眼波中散發出溫柔的嫣然笑意，似是涌自她女性的心頭。長期以來十分蒼白的面頰也泛起紅潮。
  10. Soft curls falling onto the shoulders and long, wavy natural looks were in favour

    垂至肩頭的大花捲發和長長的、呈波浪狀的自然發備受推崇。
  11. In this thesis, first, we present the theory of sess system, the generation of the sess spreading code and its characteristics and the acquisition theory of conventional spread spectrum communication system. an efficient acquisition scheme based on periodically transmitting the synchronization head, which is composed of binary chaotic codes, using the matched filter and automatic decision threshold - level control based on a so - called constant false alarm criterion for sess system is present. the acquisition model of sess system is built and simulated in the awgn channel, the raleigh fading channel and imulti - address interfere condition

    本文首先概述了自編碼擴頻通信的原理、自編碼擴頻序列的產生方法及其特性和擴頻通信系統編碼同步的理論，然後針對自編碼擴頻通信系統提出了擴頻序列捕獲方案:周期性地加入混沌序列同步碼，並採用恆虛警率匹配濾波器捕獲法;在加性白高斯噪聲通道、瑞利衰落通道和多址干擾情況下進行了模擬，分析了各種捕獲性能:在選擇性能最優的混沌序列、適當的序列長度、虛警概率及門限值的情況下，可以獲得較短的捕獲時間和較大的捕獲概率。
  12. The microwave magnetic sintering can not only lower the sintering temperature and shorten the sintering time, but also decrease the micro - grain size of magnets and make intergranular phase and grain boundary of main phase distributed well. the abnormal grain growth was found in conventional sintered ndfeb magnets, which may be due to the greater particle size and uneven distribution of powder, and higher sintering temperature and longer sintering time. of course, the abnormal grain growth would deteriorate the magnetic properties

    微波磁場燒結的不但降低燒結溫度，縮短燒結時間，而且使磁體整體加熱，受熱更均勻，因而磁體晶粒更細小，並且主相晶粒邊界趨于規則化，晶間相的分佈更均勻；在常規燒結的磁體中則出現了晶粒異常長大現象，造成這一現象的原因，一方面可能是燒結溫度過高或燒結時間過長，另一方面可能是磨製的粉體均勻性較差，存在的大顆粒被許多細小顆粒包圍，在燒結過程中，大顆粒不斷吞併小顆粒，逐漸長大，而異常長大的晶粒自然會導致磁體性能的惡化。
  13. Secondly, the third order nonlinear optical properties of these compounds are studied under the excitation of ps pulsed laser with the wavelength of 1064nm using z - scan technique, nonlinear refractive indices and nonlinear absorption coefficients are calculated according to the z - scan experiment curves of the compounds. all the three compounds have self defocusing characters and two photon absorptions. lastly, nonlinear refraction and absorption properties of these compounds are studied by z - scan technique under the excitation of ps pulsed laser with the wavelength of 532nm the self defocusing and reverse saturation absorption are found in these compounds

    根據實驗曲線計算了它們在1064nm下的三階非線性折射率和非線性吸收系數，三種化合物都具有自聚焦特性，並且在該波長下，三種化合物均具有雙光子吸收，最後，以皮秒脈沖的532nm為激發波長，採用z掃描方法，研究了三種金屬有機化合物的非線性折射和非線性吸收性質，在該波長下三種化合物仍然表現為自聚焦特性，且其吸收為反飽和吸收。
  14. In dwdm, the nonlinear effects such as self - phase modulation ( spm ), cross - phase modulation ( xpm ) become important

    然而多波長的密集傳輸使得光纖中的非線性效應（自相位調制、交叉相位調制等）顯著增強。
  15. The occurrence of the diabetes and the absorption of the development and the meal fiber and absorb the quantity closely related, the food such as the burdock root root of the high fiber is advantageous to the blood sugar control of the diabetic, can improve the motion circumstance of the blood sugar obviously, contributing to lowering the blood sugar, from the chinese medicine angle, the burdock root root also has the pharmacology function of eliminate the thirst the doctor is called the diabetes, so an in keeping with diabetic of burdock root is edible over a long period of time, was therefore is the best and pure blood of the great universe by the

    飲牛蒡茶可是糖尿人士食物補充品：糖尿病的發生和發展與膳食纖維的吸收和攝入量密切相關，高纖維的食物如牛蒡根有利於糖尿病患者的血糖控制，可明顯改善血糖的波動情況，有助於降低血糖，從中醫角度，牛蒡根也具有消渴西醫稱為糖尿病的藥理功能，所以牛蒡根適合糖尿病患者長期食用，因此被譽為大自然的最佳清血劑
  16. It is assumed that model parameters calibrated from measured precipitation - runoff data in a specific period, reflect the situation of land surface and the human activity in that period. firstly, daily data of precipitation, pan evaporation, and discharge in 1960 ' s are used to calibrate the parameters of the xin ' anjiang model. then the parameters calibrated are applied to the computation of daily discharge from 1950 ' s through 1990 ' s, in which daily measured data of precipitation and pan evaporation are taken as the input of the xin ' anjiang model

    這種徑流過程代表下墊面和人類活動水準不變情況下氣候波動對徑流的影響，然後利用計算的長系列徑流過程與實測徑流過程對照，其差別反映下墊面的自然變化過程是十分緩慢的，可以忽略，因此這種差別主要代表了人類活動的影響，從前後期率定水文模型所得參數的差別及參數所代表的物理意義來分析下墊面及人類活動的變化，從而將氣候波動和人類活動對地表水資源影響程度定量分解出來。
  17. New hot - spots, serious imbalances in economic development, growing gap between the north and south, prolonged increase in oil prices, trade protectionism in new forms, increasingly acute global challenges of terrorism, environmental pollution, natural calamities and communicable diseases - all these pose real threats to world peace and development

    地區熱點此起彼伏，經濟發展失衡仍然突出，南北差距繼續擴大，油價長期在高位波動，貿易保護主義上升並有新的表現，恐怖主義、環境污染、自然災害、傳染病等全球性問題日益突出，對世界和平與發展構成現實威脅。
  18. Secondly, basing on the theory of on - off gain of small signal, the raman gain coefficient for frequency shift between 0. 5 and 20 thz of standard sigle mode optical fiber is measured by pump - probe method through a super luminescent diode ( sld ) as a broadband small signal probe source. thirdly, numerical simulation analysis of gain characteristic of raman fiber amplifier for c band wdm signal light is made according to the raman gain coefficient of the fiber measured before through target and four rank runge - kutta method. at the invariability of wavelength and maximum power of each of two pumps, schematic of powers of two pumps for best flatness on c band wdm optical gain was found out, at the same time, the factors of resulting in gain saturation is analyzed, too

    本文首先應用經典的電磁理論對拉曼光纖放大器的工作機制進行了分析，然後，根據小信號理論推導出的開關增益求出了光纖拉曼增益系數的表達式，採用泵浦-探測波的方法，利用超輻射激光二極體（ superluminescentdiode簡稱sld ）作為探測光源，測量了所用標準單模光纖頻移為0 . 5 - 20thz的拉曼增益系數，之後根據所測得的光纖的拉曼增益系數譜對應用該類光纖構成的放大c波段wdm光信號的拉曼光纖放大器的增益特性採用打靶法和四階龍格- - -庫塔進行了數值計算，在給定了兩個泵浦光源的波長和最大功率后，找出了反向泵浦情況下使c波段wdm光源增益最平坦的兩個泵浦的各自最佳功率，同時也分析了導致信號光飽和的原因。
  19. At present, many fields remain to further research, especially the profound combination of gis technique with ece ( estuarine and coastal engineering ), which should be developed for the purposes as follows : ( 1 ) to serve the huge comprehensive work in changeable natural conditions and difficult construction conditions which takes a long period and covers a large region, e. g. the regulation work of deepwater channel in the yre ( yangtze river estuary ) ( 2 ) to combine the gis with applied numerical model ( 3 ) to study the hydrodynamic processes and characteristics of waves, tidal currents and sediment transport, as well as the affection carried by the regulation work in an estuary ( 4 ) to monitor and to analyze ees ( evolution of erosion and sedimentation ) and the variation of riverbed ( 5 ) to play a role of dynamic supervising of a engineering project

    目前尚有許多有待進一步研究的領域，尤其是以服務于長江口深水航道治理這樣規模大、周期長、影響區域廣、自然條件復雜、施工情況多變的國家重點工程為目的，將gis與專業應用數學模型結合，對河口海岸波浪、潮流、泥沙運動的動力機制，以及整治工程建築物對其影響的研究，對入海航道沖淤和河勢演變的監測分析，對施工進展和工程效果實現「動態」監控和管理，尚缺乏同gis技術的深入有效結合。
  20. On the grain - production aspect, there exist three kinds of levels of productive potentialities of natural output, economic output and ecological output ; in the field of grain circulation, there exist three kinds of material flow movement forms of grain yield fluctuating, grain imports and exports fluctuating and grain storage fluctuating ; in the field of grain consume, there exist three kinds of levels of primary demand, the well - to - do demand and the well - off demand

    全面糧食安全觀，是指糧食生產可持續發展、糧食流通順暢穩定、糧食消費公平與適度增長的一種糧食安全觀。在糧食生產層面，糧食生產潛力具有自然產量、經濟產量與生態產量三種水平；在糧食流通領域，存在糧食產量波動、糧食進出口波動與糧食儲備量波動等三種物流運動形式；糧食消費表現為基本需求、小康需求與富裕需求等不同層次。
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