水下可見度 的英文怎麼說
中文拼音 [shuǐxiàkějiàndù]
水下可見度
英文
underwater visibility-
The stem of helianthus tuberosus ( l. ) had the ability of containing high contents of na + and cl -, and selectively absorbed k + in high proportions seawater irrigation ; the above and tubers yields of helianthus tuberosus ( l. ) had n ' t decreased until at the 50 % proportions seawater irrigation where the yields decreased by 37 % and 32 % in contrast to freshwater - irrigated. it meant that through natural weather, reduction of yields was occurred by salinity of irrigation water but the reduction was not significant until the proportions of seawater in irrigation water were the same as 50 % or above it
海水灌溉下，菊芋的莖部具有明顯的貯cl ~ - 、 na ~ +能力，在高濃度海水灌溉下菊芋整個植株對k ~ +具有較高的選擇吸收性；菊芋地上部和塊莖產量在30海水處理范圍內，沒有減產趨勢，在50海水灌溉下減產幅度分別為37和32 ；可見，正常自然條件下的海水灌溉，對產量的影響主要和灌溉水的濃度有關，但只有在50處理下才顯著減產，低於50產量並無差異。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。While the hydrate saturation is more than the critical saturation : a ) the avo cannot curve indicate whether there exists any free gas below the bsr ; b ) the bsr is always visible in seismogram whether there exists free gas below or not
而當水合物飽和度大於臨界飽和度時： a ） avo曲線不能反映bsr下方是否含有游離氣； b ）無論下方是否含有游離氣， bsr在地震記錄上總是可見的。The proposed adaptive watermarking scheme enables more energy of watermark to be embedded with imperceptibility, so the stego mesh can be resilient to higher intensity of attacks than with traditional schemes
這使得本演算法能夠在嵌入的水印信息不可見的前提下嵌入更大能量的水印，從而保證水印隱藏對象能夠承受更大強度的攻擊。Based on the spectral irradiance measured with the sun - atmosphere ultraviolet spectrum radiometer ( sauvs ) developed by the institute of atmosphere physics and the changchun institute of optics and fine mechanics, chinese academy of sciences, measuring the direct and scatter irradiance spectrum of ultraviolet waveband which arrives in beijing global surface, giving a method of retrieving the aerosol optical depth ( aod ) and put up with primary results that exponential function can fit the retrieval results according to its visibility, putting forth different coefficients and functions on variable visibility, also giving a primary analysis on the aod in dust - storm day and some contrast between sun - day and dust - storm day, analyzing the ratio between scatter and total irradiance, and its relationship with atmosphere mass and total atmosphere optical depth, lastly contrasting with the survey results by aeronet beijing station, the results of retrieval is in reason, this work gives some help in researching the co - effect of aerosol - radiance - climate and makes preparation for further survey on the radiance characteristics of dust
利用中國科學院大氣物理研究所與長春光學精密機械研究所合作研製的太陽?大氣紫外光譜輻射計（ sauvs ） ，測量到達北京地表的太陽直接和散射紫外光譜輻射，導出了大氣氣溶膠的光學厚度。初步結果表明：北京紫外波段大氣氣溶膠的光學厚度在絕大部分情況下隨波長的增加而單調減小，用指數函數可以較好地擬合反演結果，統計得到了三個水平能見度狀況下擬合函數的系數值和公式表達式；初步分析了揚沙、浮塵、沙塵暴天氣條件下氣溶膠光學厚度的特點，並與一般晴朗天氣條件下的氣溶膠光學厚度特點做了比較分析；分析了太陽紫外譜輻射中散射輻射與大氣質量、大氣總光學厚度的定性關系和定量表達式；最後與全球氣溶膠監測網路（ aeronet ）北京站的資料做比對，表明反演結果基本合理。Our company has typical examination and experiment equipments, as follows : atomic absorption spectro - meter, visible spectro - meter, gas chromatography, moisture meter, electronic balance, nitrogen tester, hydrogen tester, particle size analyzer, various titrator and so on
贛鋒已擁有的典型檢驗試驗設備如下：原子吸收分光光度計可見光分光光度計氣相色譜水分測定儀電子天平測氮裝置測氫裝置粒度測定儀各類滴定裝置等。The main features in the study of flood forecasting and control system are as follows : ( 1 ) runoff generating and confluence theory and hydro - dynamic method are adopted to predict the water level of taihu lake and key nodes, the basin wide forecasting and control system with the function of real time correction has been first established in plain river network to meet the complicated flow conditions of taihu lake basin and to enhance the reliability of forecasting results ; ( 2 ) according to the rainfall in foreseen period multiple schemes can be made in the forecasting model and adjusted with time, which overcomes the errors caused by the uncertain rainfall in the foreseen period so as to make the forecasting results approach reality
本文所研究的預報調度系統有如下特點： （ 1 ）本系統採用產匯流理論和水動力學方法預報太湖及重要節點水位，首次在平原河網地區建立了具有實時校正功能的全流域預報調度系統。以適合太湖流域復雜的水力條件，增強預報的可靠性; （ 2 ）預報模型可以根據預見期降雨量進行多方案預報，並隨時間推移，可以實時進行調整，克服由於預見期降雨不確定引起的誤差，使預報結果更接近實際。Discussing into countermeasures of groundwater resources development from the high point of
從可持續發展高度論運城地區地下水資源開發利用的對策意見The protein level of p27 klpl increased at ih, decreased from 6 to 24h after 2gy, it decreased from 3 to 24 h after logy, and the level of p27kipl associated with cdk2 decreased, then lost its inhibition function to cyclin - dependent kinase
Eycline / enkz的負調控因子p27k ， p 』蛋白表達水平在zoy照射后lh略有增加， 6一9h開始下降; 10gy照射后3h開始下降，持續到24h ，可見，隨著ir劑量的加大和處理時間的延長， p27kip 『蛋白表達水平下降的程度加大。The research also indicates that at the level of juvenile volleyball matches, the two indices of alb and b2 - mg do n ' t change remarkably before and after the match, which can demonstrate that matches at nuvenile level should be in medium or normal intensity scope. through the research, the author points out that the two indices of alb and b2 - mg are effective in evaluating and monitoring the training and match of juvenile volleyball players
研究還發現：青少年層次的排球比賽，運動前後尿中兩項指標未見顯著性變化，由此可證實該種訓練水平的排球比賽屬于中小運動強度，就此，作者得出以下結論：尿alb ， _ 2 - mg是評價和監督青少年排球運動員訓練和比賽的直觀而有效的生理學指標。In order to insure that autonomous underwater vehicle completes the tasks successfully in unstructured and hazardous oceanic environment with the high pressure and low visibility, an efficient and effective fault - tolerant control system becomes imperative for auvs
摘要為保證自主式水下機器人在高壓、可見度差的未知海洋環境下順利完成作業任務，必然要求水下機器人具有容錯控制能力。The paper put forward an aim to deposit n - doped titanium dioxide film on glass substrate by the atmospheric pressure chemical vapor deposition ( apcvd ) method. using ticl4 and oa as precursors, titanium dioxide thin films had been deposited by apcvd method. nitrogen had also been doped in the film when n2o gas was added as the dopant
在實驗室條件下以ticl _ 4和o _ 2為先驅體，採用常壓化學氣相沉積法（ apcvd ）制備得到具有一定光催化性和親水性的tio _ 2薄膜，並且以n _ 2o作為摻雜劑，對薄膜進行了n的摻雜，在一定程度上提高了薄膜可見光照射下的光催化性和親水性。When the hydrate saturation is less than the critical saturation : a ) the avo curve can indicate whether there exists any free gas below the bsr ; b ) if there is no free gas below, only when the micro model is model c can bsr be visible in seismogram
當水合物飽和度小於臨界飽和度時： a ） avo曲線能夠反映bsr下方是否含有游離氣； b ）如果下方沒有游離氣，只有微觀模型為模型c時，在地震記錄上才有可見的bsr 。分享友人