variation of water level 中文意思是什麼
variation of water level
解釋
水位變化-
This paper elementarily collects the anomalies of coseismic and post - seismic effect such as seismic activity, crustal deformation and underground liquid and so on observed in china ' s mainland, which include the evident seismic activity ( especially in yunnan ) increase, obvious crustal deformation, such as the abnormal variation of crustal stress and strain in bore volumetric deformeter and the remarkable change of underground temperature, the chemical component, especially the underground water level
初步匯集了在中國陸區觀測到的地震活動、地殼形變、地下流體等多學科震時和震後效應的異常變化，包括地震活動性（特別是雲南地區）的顯著增強；地殼形變觀測，尤其是鉆孔應變觀測記錄到地殼應力應變的震時和震后顯著變化，以及地下水溫度、化學成分、特別是水位的突出變化。 -
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。 -
Mainly, the type of pump in the large - scale irrigation and drainage pumping station in our country is adjustable - blade propeller pump. we can regulate the pump ' s blade mounting angle following the variation of water level at the inlet and outlet of the station in order to control the discharge of pump, we also determine the number of running machines with machine ' s optimal combination. so we can reduce its energy consumption, and make it optimally and economically run
我國大部分大型電力排灌站所安裝的泵都為可調節葉片的軸流泵，這一有利條件使我們可以根據排灌站進、出口水位的變化來調節水泵的葉片角度，控制水泵的流量，併合理的確定開機臺數，通過機組間的優化組合，使整個泵站的能耗最少，達到整體最優、經濟運行的目的。 -
Based on the analyses of the flow and sediment characteristics and evolution trend of the river bed of the fuling reach in the yangtze river before and after the impoundment of the three gorges reservoir, the water level, velocity variation and influenced range in the fuling reach before and fifty years after the operation of the three gorges reservoir with the construction of the fuling dock and four discharge combinations are calculated by using a two - dimensional flow mathematic model
摘要在分析長江涪陵段的水沙特性和三峽水庫蓄水前後該河段河床演變趨勢的基礎上，運用二維水流數學模型，分析了4種流量組合情況下在三峽水庫運用前和運用50年，涪陵港區碼頭修建前後的水位、流速變化及其影響范圍。 -
Through the analysis on the relationship and variable tendency between the present population situation, main index of economic development and the amount of water consumption, the quota of water consumption, meanwhile, synthetically considering about the variation of influential factor such as water resources condition in future, economic and social development, science and technical progress, the efficiency of water consumption and the level of water conservation, etc, the relationship between the above - mentioned synthetical influential factors and the index of water demand amount is established and the variation of growth rate of water demand in future and the variation breadth of other indices such as water consumption per capita and water consumption unit value of output are confirmed
摘要通過對現狀人口、主要經濟發展指標與用水量、用水定額的關系及其變化趨勢的分析，在綜合考慮未來水資源條件、社會經濟發展、科技進步以及用水效率、節水水平等影響因素變動條件下，建立綜合影響因素與需水量指標的關系，確定未來需水量增長率的變化及人均用水量、單位產值用水量等指標的變動幅度。 -
It possesses the characters of high head, high velocity, long operation time and large variation range of water level
它具有水頭高、流速大、運行時間長、水位變幅大等特點。 -
Therefor, in the light of theory and methods of karst hydrogeomorphology and the knowledge of transformation, balance and variation of matter and energy in karst drainage basin, we can examine stone forest within a specific scope of time and space, and reveal the mechanism and the development model of stone forest with the help of the principle of the mutual response processes among base - level, water flow and forms. just based on the understanding above, the paper, with a special reference to the lunan stone forest which is the best developed one in china, discusses the hydro - geomorphlogical structure of the bajiang river, geomorphological types and spacial distribution feature of the stone forest, and studies the erosion rate on the top of stone forest, soil erosion rate, sub - soil dissolution rate and their combined influences on the evolution of stone forest, furtherly brings forward and demostrates the " tri - level erosion " mechanism for the development of stone forest
正是基於這種認識，本文以我國石林發育最完美的路南石林為研究對象，研究了巴江喀斯特流域的水文地貌結構特徵、石林的形態類型及其空間分佈特徵；探討了石柱頂部的剝蝕速率（ a ） 、表土剝蝕速率（ s ） 、土下溶蝕強度（ c ）及其組合對石林發育的影響，提出並論證了路南石林發育的「三重剝蝕」機制；通過對石林發育必備條件的剖析，以及對巴江喀斯特流域演變階段的定量研究、水文地貌系統的空間耦合分析，探討了巴江喀斯特流域的演變與路南石林發育間的關系，並結合該流域的演化史，提出了巴江喀斯特流域演變與路南石林發育的模式。 -
2. horizontal displacement variation rules according to water level and temperature are researched by analyzing that of huangtankou concrete gravity dam. 3
通過對黃壇口混凝土壩水平位移的變化過程分析，研究了壩頂水平位移隨水位、溫度等環境量的變化規律。
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