預報準確性 的英文怎麼說

中文拼音 [yùbàozhǔnquèxìng]
預報準確性 英文
correctness of forecast
  • 預 : Ⅰ副詞（預先; 事先） in advance; beforehand Ⅱ動詞（參與） take part in
  • 報 : Ⅰ動詞1 （告知; 報告） report; declare; announce 2 （回答） reply; respond; reciprocate 3 （答謝）...
  • 準 : Ⅰ名詞1 （標準） standard; guideline; criterion; norm 2 （目標） aim; target Ⅱ動詞1 （依據; 依照）...
  • 確 : 形容詞1. （符合事實; 真實） true; reliable; authentic 2. （堅固; 堅定） firm
  • 性 : Ⅰ名詞1 （性格） nature; character; disposition 2 （性能; 性質） property; quality 3 （性別） sex ...
  • 預報 : [訊] forecast; forecasting; prediction
  1. At first, this paper analyzes the factors of water - sand influencing water level of yellow river and the feasibility just using the factors of water - sand to study water level, and collects the corresponding data ; secondly, because there are strong nonlinear relation in the corresponding data, by meticulous theory analysis, this paper integrates basic nonlinear analysis method, theory of random analysis, method of least squares and so on. it puts forward a method which can get the high accuracy simulation of the data, perfects the multi - factor analysis of variable ( over three factors ) of the statistic ; thirdly, it applies the method to the approximation of corresponding water level process which belong to the capacity of sand of middle - high and middle - low, and get the high - accuracy simulation about the typical nonlinear relation ; at last, this paper definitudes the main influence mode that the capacity of sand. it mainly unite with other factors to work on the water level in the yellow river lower reaches ; mor eover, this paper analyzes the difficult point and the direction of improvement to realize the accuracy forecasting of the flood level of erodible - bed channel

    首先，系統分析了影響黃河水位的水沙因素，及僅用水沙因素有效研究水位的可行性，並按變量對應思想採集它們的相應數據；其次，由於相應水位過程數據中含極強的非線性關系，本論文經細致的理論分析，將基本的非線性分析方法、統計建模方法、隨機分析理論、最小均方誤差原則等等數學理論及方法有機揉合，提出了能有效實現這類數據高精度擬合的分層篩選法，並改進了統計學中多因子（三個以上）方差分析法；再次，將這一方法用於黃河中高及中低含沙類洪水相應水位過程的擬合，實現了這一典型非線性關系的高精度擬合，各年汛期上下游相應洪水位過程的擬合誤差都較小；最後，明確黃河下游含沙量對水位的主要影響方式，即含沙量主要是與其它因素聯合對水位作用；另外分析了要實現變動河床洪水位過程準確預報的困難所在及改進方向。
  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. According to all the sediment peaks of 35 floods observed at each station on the downstream of xiaolangdi, it analyzes the characteristic of delayed sediment peak and establishes a regression equation between sediment peak lag time for each section of xiaolangdi, huayuankou, jiahetan, gaocun, sunkou, aishan and lijin and peak discharge, sediment concentration of the peak, flood propagation velocity and fall velocity of suspended load of the previous station, which can search, make up and extend sediment peak lag time and provide a basis for accurate forecasting on sediment peak travel time of each station on the lower yellow river

    根據小浪底下游各站沙峰均滯後於洪峰的35場洪水，對沙峰滯後於洪峰的特性進行了剖析，建立了小浪底、花園口、夾河灘、高村、孫口、艾山、利津各河段沙峰滯后時間與上站洪峰流量、沙峰含沙量、洪水傳播速度、懸移質泥沙群體沉速之間的回歸方程，可以用來查補延長沙峰滯后時間，為下游各站沙峰傳播時間的準確預報提供依據。
  4. The competent meteorological departments at different levels and the meteorological offices and stations subordinate to them shall issue public meteorological forecast and severe weather warning with improved accuracy, timeliness and service

    各級氣象主管機構及其所屬的氣象臺站應當提高公眾氣象預報和災害性天氣警報的準確性、及時性和服務水平。
  5. It depends on how well the weather forecasts hold up

    這取決于氣象預報的準確性如何。
  6. In power market, system marginal price ( smp ) is the product price of an individual energy enterprise whose profit relies on successful bidding policy, and bidding policy is generally based on accurate mastery of short - term market tendency whose key is to carry out forecast of smp

    系統邊際結算電價（ smp ）是發電企業在競爭性電力市場中的產品價格，以經濟效益最大化為驅動，發電企業的利潤依賴于成功的報價策略，而報價策略形成的基礎是準確把握短期市場的走向，把握市場的關鍵則是對smp的準確預測。
  7. Results show that a three - stepwise weight function correction method is effective and applicable and can be spread in other basins. it can eliminate the outlier of rainfall data and improve the accuracy of flood forecast

    計算結果表明，採用雨量觀測誤差三步權函數修正法是有效的，能準確剔除雨量資料的粗差，改善雨量資料的合理性，提高洪水預報的精度。
  8. At the present time the prediction method of attracting pest with black light and recognizing and counting by man is generally adopted. there are some serious shortages such as bad recognition accuracy and low efficiency. it reduces seriously accuracy and timeliness of prediction and is disadvantage in guiding insect disease prevention

    目前普遍採用的黑光燈誘集害蟲、人工識別計數的測報方法，存在識別準確性差、效率低等嚴重缺陷，極大地降低了測報的準確度和時效性，不利於指導農田害蟲的防治工作，因此本文提出了基於機器視覺和小波分析的圖像識別技術，用於農田害蟲的自動檢測預報。
  9. It is desirable for all related insiders and outsiders to discern all potential risk in advance. this paper, with the adoption of special treatment resulted from abnormal financial position as the indicator of financial distress, the univariate variable analysis and multiple variable analysis as the research approach and some financial ratios as variable, tries to find an optimal financial distress prediction model of chinese manufacturing listed companies based on public accounting data. our finding demonstrate that five general financial ratios and three ratios concerning the cash flow have better predicting ability, the erroneous classification ratio are low. these five general financial ratios are earning per share, return on net assets, return on gross assets, growth rate of net profits, growth rate of net assets ; the three ratios concerning the cash flow are net cash flows from operating activities per share, net re - earnable cash flows / current liability, net cash flows from operating activities / net profit

    研究結果表明，在單變量分析中，每股收益、凈資產收益率、總資產報酬率、凈利潤增長率、凈資產增長率這5個財務比率的錯分率較低、預測能力較強；經營活動凈現金流量與凈利潤之比、每股經營現金流量、可重復賺取的現金凈流量與流動負債之比這三個現金流量財務比率對于預測上市公司財務困境具有有效性；多變量分析中，應用費雪判別分析和典則判別分析得到兩個判別模型，在典則判別分析中，應用兩種方法確定所建模型的最佳分界點，檢測證明應用所得兩個判別模型進行財務困境預測的準確率很高。
  10. Because of the randomness, the periodicity and the impact property of load changes, the short - range electric load forecasting accuracy is related to the pre - processing of original data, the load forecasting model, the sudden change of climate etc. without an appropriate mathematical model, it is difficult to meet the demand of farecasting accuracy by using computer software

    短期電力負荷預報的準確度與原始數據的預處理、負荷特性、預報模型、氣候突變等因素有關，因為負荷變動具有隨機性、周期性和沖擊性的特性，如果不採用恰當的數學模型，利用計算機軟體技術就難以滿足預報準確度要求。
  11. The results of numerical experiments, using the four - dimensional variational data assimilation system of the nonhydrostatic mesoscale model mm5, show that : the tangent linear model and adjoint model conducted by keeping the " on - off " switches the same as the basic state, can provide a good approximation of the first - order information to the nlm perturbation and a good descent direction for the minimization procedure ; switching on and off at every other time step in the kuo cumulus parameterization scheme do n ' t impact the convergence rate of cost function ; the existence of the switches do n ' t impact improvement to the mm5 model rainfall prediction because that not only specific humidity, but also wind, temperature and pressure are assimilated into the model

    非靜力中尺度數值模式mm5的四維變分資料同化系統進行的數值試驗結果表明： 「開關」變量保持與基態一致，所構造的切向線性模式能夠提供關于非線性模式擾動的一階近似，伴隨模式所計算的梯度值能夠為最小化過程提供較好的下降方向；郭氏降水參數化方案中對流每隔一個積分步的交替發生並不影響目標函數最小化的收斂速度； 「開關」變量的存在也不影響將風、溫度、氣壓和比濕結合起來同化對mm5降水預報準確性的提高。
  12. The mechanism is difficult to be make out by conventional weather analysis and statistical forecast, and could n ' t find the correspond criterions of these paroxysmal disaster weather forming. these puzzled the forecasters, and leaded to the lower accuracy rate of forecast

    傳統的天氣學和統計方法對這樣的突發事件的發生發展機制難以確定，找不到這些突發性災害天氣形成的相應判據，令預報員十分困惑，至今高原地區大到暴雨的預報準確率都很低。
  13. According to his research accomplishments, from 1999 until 2006, he conducted a series of tests with the liaoning xiuyan ms5. 6 quake, the inner mongolia ms5. 9 quake, the sumatra ms8. 7 quake, the hebei wenan ms5. 1 quake, as well as the usa california ms5. 0 quake, to repeat and reoccur the precursors, which indicated a practical earthquake prediction success rate of over 75 %

    他依據自己的研究成果，自1999年至2006年先後就遼寧岫巖5 . 6級地震、內蒙古5 . 9級地震、印度洋8 . 7級地城、河北文安5 . 1級地震、美國加州5 . 0級地震等進行了地震前兆的重復和再現性試驗，實際預報準確率達75 %以上。
  14. The results show : in 13 possible variables, operating fund ratio, stock turnover ratio, total assets turnover ratio, rate of return on total assets and rate of retained profit to total assets have an important influence on finance and the accurate rates of our models are 86. 8 % for - 0 - year data and 79. 82 % for - 1 - year data

    結果表明： 13個變量指標中，反映資產流動性的營運資金比率，反映資產經營能力的存貨周轉率、總資產周轉率以及反映企業獲利能力的資產報酬率、累計盈餘對于企業的財務有著重要的影響，其預測的準確性在0年達到86 . 8 ， 1年達到79 . 82 。
  15. Where appropriate, em a mechanisms have been recommended to verify the accuracy of the eia predictions to ensure the effectiveness of the recommended mitigation measures. in conclusion, it is considered that

    此外，報告亦建議了一些環境監察和審核措施，藉以核驗本報告各項預測的準確性，以及所建議的緩解措施的成效。
  16. Though various models and different methods of treating monitoring datas, we can improve our predicting effect and accuracy

    利用多種模型進行對比分析，採用不同的手段進行資料處理，使滑坡分析預報更具可靠性與準確性。
  17. The regular operation of the meteorological satellite ground application system, in particular, has greatly improved the accuracy of forecasting disastrous weather and significantly reduced the economic losses of the state and people from such weather

    特別是衛星氣象地面應用系統的業務化運行，極大地提高了對災害性天氣預報的準確性，使國家和人民群眾的經濟損失有了明顯的減少。
  18. The sliding bearing is chosen as the research object, and its system dynamics model of the heat plane and agglutination state are found. the three - dimension failure surface of temperature - verity - load is put forward as alarm criterion. with this method, the developing trend of fault can be forecasted truly, then the veracity of fault alarm can be improved

    本文首次將系統動力學方法用於機械設備的事故報警，並以滑動軸承為例建立了熱平面系統動力學模型和膠合狀態系統動力學模型，提出以溫度?速度?載荷三維失效面作為報警判據，可較為準確地預測故障的發展趨勢，提高事故報警的準確性。
  19. Objective methods to forecast movements of tropical cyclones are transmitted operationally to other southeast asian countries for reference use and verification

    熱帶氣旋移動途徑之客觀預報在日常業務中傳送給東南亞國家作參考及準確性驗證。
  20. Objective methods to forecast movements of tropical cyclones are transmitted operationally to other southeast asian countries for reference use and verification. guidance material for forecasters on various aspects of weather associated with tropical cyclones is also developed

    熱帶氣旋移動途徑之客觀預報在日常業務中傳送給東南亞國家作參考及準確性驗證。用來預報熱帶氣旋帶來的天氣情況的各種參考性資料亦已經制定供預報員應用。
分享友人
分享到 Line

分享到臉書