forecast variation 中文意思是什麼

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。

It is concluded that the gaussian curvature method can reflect the shape variation of coal seam curvature, and the method is effective to forecast natural fracture zones in coal seam

分析表明，高斯曲率法可相對真實地反映煤層曲面形態變化，用該方法預測煤層天然裂隙發育區是切實可行的。

Originating airport name, metar speci issue time, wind direction speed gust, wind direction variation, visibility, runway visual range, weather during time of observation, cloud, air temperature dew - point, qnh pressure measured at airport with adjustment made to suit aeronautical use, weather during the past hour but not at time of observation, wind shear information, trend - type landing forecast

發出資料的機場名稱發出metar speci的時間風向風速陣風風向轉變能見度跑道視程觀測時的天氣雲層氣溫露點qnh在機場錄得的氣壓，經調整以配合航空用途過去一小時但非觀測時的天氣風切變資料飛機降落用的趨勢預測。

Originating airport name, metarspeci issue time, wind directionspeedgust, wind direction variation, visibility, runway visual range, weather during time of observation, cloud, air temperaturedew - point, qnh ( pressure measured at airport with adjustment made to suit aeronautical use ), weather during the past hour but not at time of observation, wind shear information, trend - type landing forecast

Metarspeci電碼包含趨勢預測，即預測未來兩小時內天氣的轉變，而且更利用特別標號（視乎情況，標號可以是ttttt = becmg或tempo ）又或是nosig ，來指明轉變。 （ becmg意指逐漸轉變； tempo意指間中； nosig意指並無顯著轉變。 ）

This paper introduced how to forecast the variation of runoff in the future and estimate the reliability of the water supply source system in operational period, by using the weighted and fuzzy markov ' s chain model

摘要本文通過建立模糊帶權馬爾柯夫鏈模型，預測徑流量未來的豐枯變化情況，評價運行期供水水源系統的可靠性。

Come to the road vehicle breakdown, circadian variation and variation week. use of equivalent continuous a levels and the cumulative percentage of the level of traffic noise test evaluation, proportional prediction right sontu street next five years, the traffic noise trend forecast

運用等效連續a聲級及累計百分數聲級對測試的交通噪聲進行評價，採用比例預測法對雄楚大街未來5年交通噪聲的發展趨勢進行預測。

In order to predict the variation tendency of fire box temperature accurately, improve production efficiency, this text has proposed using the forecast model of flame temperature in the stove based on bp neural network. discussed the choice of the forecast model ’ s input parameter and date pretreatment technology

為準確預報爐膛溫度變化趨勢，提高生產效率，本文提出了運用bp神經網路進行爐膛火焰溫度預估的模型，討論了預估模型輸入參數的選擇和數據的預處理技術。

The retrieved humidity was put into meso - scale nonhydrostatic numerical weather forecast model mm5v3 after variation analysis, and a severe convection event was analyzed with the retrieved relative humidity

針對2003年7月21日發生於寧夏北部的一場突發性強對流天氣，應用反演溫度場，進行了數值模擬試驗。

In the dissertation, the problems of the current irrigation forecasting models and methods are put forward. considering spatial variation in soils, a real - time forecast model of irrigation schedule at irrigated area scale is studied, so as to provide an approach for the more suitable decision support system of irrigation forecast and water management system

本文針對國內外現有的灌溉預報方法和模型存在的問題，考慮灌區土壤墑情空間變異特性，對灌區尺度的實時灌溉預報模型進行了研究，旨在提出適合我國灌區情況的灌溉預報決策支持系統和現代化灌區用水管理系統的實時灌溉預報方法。

The production forecast model and the ipr curve equation for the producing well in permeability variation formation is established, and it is very useful to guide the gas field producing

結合地層流體滲流機理，引入滲透率變異方程建立了適合於儲層特徵的滲透率變異產量預測模型，求得ipr生產曲線。

It is related to lithology, lithology association porosity, permeability, compressibility of rock, enclosing and fracture etc. therefore, it is important for the forecast of formation compression to consider fully the variation of each geology factor

實際上，地層壓力的影響因素很復雜，與巖性及其組合、巖石的孔隙度及滲透率、壓縮性、巖層的封閉性、裂縫等有關。因此，在進行地層壓力預測時要充分考慮各種地質因素的變化。

The infested area and spatial variation regularity of dendrolimus punctatus population density at all the survey spots in xianju county were studied with forecast kriging based on the data of survey for dendrolimus punctatus between september 1983 and september 1989 and the spatial forecast model of the infested area and population density of the pest was established

摘要根據1983年9月至1989年9月馬尾松毛蟲的蟲情調查資料，用預測克立格方法研究全縣各調查點的馬尾松毛蟲有蟲面積、蟲口密度的時空變化規律，建立馬尾松毛蟲有蟲面積、蟲口密度的空間預報模型。

So we can know the equipments information under working through the analyses of lubricants. the author heavily elucidates that how to forecast the failure of the equipment and how to look for fault source according to the lubricant " s variation. the specific failure cases have been analyzed by the diagnosing method based on the lubricating oil

本論文著重闡述如何從潤滑油使用中的變化預測設備故障及尋找故障原因，明確提出以潤滑油作為設備故障診斷技術的主題，分析了以潤滑油為主體的故障診斷方法，並就具體事例進行分析。