world statistical data 中文意思是什麼
world statistical data
解釋
世界統計數據-
Multispectral data for bathymetry is often performed in relatively clear shallow waters, up to now, no one use multispectral data for bathymetry in estuary waters of yellow river, where the highest sediment concentration in the world has been observed. in another part of this thesis, multispectral data acquired by landsat - 5 tm and in situ data are used for bathymetry in estuarine waters of yellow river. statistical models based on one band and two bands of tm respectively are developed
利用兩期水深的比對可以揭示黃河水下三角洲的沖淤演變規律，但由於實測水深資料獲取較為困難，因而利用遙感來反演水深是一個重要的選擇，為此，本文在黃河口海現代黃河三角洲沖淤演變規律與遙感應用研究端走取兩個試驗區進行了多光譜遙感水深反演試驗，試驗結果表明，在極高泥沙濃度、較強水動力條件的黃河口海域，用多光譜遙感反演水深是可行的。 -
The paper is based on systematology theory and means, qualitative and quantitative analysis, statistical information analyzing. referring to many papers, historical literature, statistical data, we analyze the evolvement of rivers and lakes, and its driving forces in sihu area from holocene epoch, and discuss the interaction of its change and regional anthropogenic activities. we also systemically analyze the complexity and rules in their interrelationship. furthermore, we study the benefit and harm of the water conservancy - hardhanded driving force coming from human world
本文以系統論的思想和理論為指導，採用定性和定量相結合的方法，參照大量的文獻、歷史資料和多項統計數據，通過對四湖地區全新世以來的河湖環境演變過程及其驅動因子的分析，探討了河湖環境演變與區域人類活動的相互作用；尤其是系統地分析了區域河湖系統和人類活動之間的密切聯系、相互作用、相互制約的復雜性和特定的規律性。 -
Firstly, this paper has to solve the problem of how to separate the data of japonica rice from rice, for until now the authorities has n ' t published japonica rice production statistical data in china. by means of overall survey, typical survey and the collection of correlated statistic materials, this paper calculates the sown area and output of japonica rice of every one of japonica rice production provinces and all over the country, obtains the dates of consumption and trade of japonica rice in china and the world
本文首先要解決粳稻（米）數據從水稻中剝離的問題，因為直到現在，我國還沒有粳稻生產的統計數據，通過全面調查、典型調查和相關統計資料的收集，推算出我國相關各省區的粳稻面積和產量以及全國的粳稻種植面積和產量，得到我國粳米的消費和貿易數據，以及世界粳稻的生產和貿易數據。 -
Abstract : while the brilliant achievements in science and technology are obtained the lessons on understanding and reforming nature are drawn by human. the lessons are mainly form natural disasters. based on the information from mrnatcat service and other statistical data, the main characteristics and distributions of global natural catastrophes in the 20th century are briefly reviewed, and the primary causes of the natural catastrophes in the world are analyzed as well
文摘:人類在科學技術取得了輝煌成績的同時，在認識自然和改造自然方面也得到了教訓和新的認識.這一教訓主要是來自自然災害.根據收集到的全球自然災害有關數據，對21世紀全球主要自然災害特徵和分佈特點進行了分析，並對其成因提出了看法 -
It is possibility but not probability that the optimal production lot - sizing ( pls ) model emphasizes. the methodology developed in this paper is especially effective on the cases, which are lack of historical and statistical data. this shows its extensive practicability and wide applications in solving real world problem
論文所討論的最佳生產批量模型，強調的是一種可能性而不是隨機性，它為現實經濟生活中大量存在的缺乏歷史數據和統計數據作參考的情形提供了一種切實可行的解決辦法。 -
Objective : to analyze the data of the permanent teeth caries and treatment needs of six age groups people in beijing with statistical methods which came from the second national oral health survey of china in 1995. method : the total sample of 12792 ( 8520 urban, 4272 rural ) for 6 age groups ( 5, 12, 15, 18, 35 - 44, 65 - 74 - year - old ) were examined. the diagnostic criteria recommended by the world health organization were used in this study ( oral health survey basic methods third edition, 1987 ). result : the dmf and dmft incidence of six age group in the urban was higher than that in the rural on the whole. the dental caries level of 12 - year - olds was very low. f percentage of 12 - year - olds was 15. 42 % ( urban ) and 3. 23 % ( rural ). the current situation of chinese dental care cannot meet the who objectives for the year 2000. conclusion : it pointed out that we should emphasize oral health education and enhance the consciousness of health care. since the treatments of caries became more complicated with the age, we should perform the primary oral health care in the early stage
目的:本文對1995年第二次全國口腔健康流行病學調查中，北京地區六個年齡組人群的恆牙患齲及治療需要情況進行統計學分析.方法:採用整群抽樣方法，對北京市六個年齡組的城鄉人群12792人（城市8520人，農村4272人）進行了口腔檢查，診斷標準根據世界衛生組織1987年第三版一書.結果:各年齡組的患齲率及齲均基本是城市高於農村， 12歲年齡組的患齲情況處于很低水平， 12歲年齡組恆牙充填率為15 . 42 （城）和3 . 23 （鄉） ，結論:本結果離2000年目標有一定差距，提示我們應加強口腔健康教育，提高居民口腔保健意識.另外，隨年齡的增長牙齒治療的復雜程度逐漸增高，因此，應在人群中開展初級口腔衛生保健，做到早發現，早診斷，早治療 -
In this paper, we introduce a new framework for statistical signal processing based on wavelet - domain hidden markov models ( hmms ) that concisely models the statistical dependencies and nongaussian statistics encountered in real - world signals, since the wavelet transform can decorrelate image data by reducing the number of states of wavelet coefficients, thus making wavelet - domain hmms manipulable and usefu l for statistical image modeling
本文介紹了一種統計信號處理的框架模型，這種模型是基於小波域的隱馬爾可夫模型，它可以簡潔地對實際生活中遇到的信號的統計相關性和非高斯統計進行建模。因為小波變換可以通過減少小波系數的狀態數量來去除圖像數據的相關性，因此小波域的隱馬爾可夫模型對于統計圖像建模是可以掌控的和有用的。 -
According to the regulation of period time of average statistical climate by the world meteorological organization, and taking into account of our country ' s climate characteristics, statistically analyzes the basic weather data for 18 cities in china from 1970 to 2000. weather data include maximum temperature and correspono, minimum relative humidity, minimum temperature and corresponding maximum relative humidity. this would be a preliminary database for responsive climate building design
依據世界氣象組織（ wmo ）關于氣象參數統計時段的規定，考慮到我國不同城市區域氣候的特點，在建立室外氣象參數分析模型的基礎上，本文首次統計分析了我國18個城市最近30年（ 1970 - 2000 ）的主要氣象參數，包括月平均溫度、月最高溫度、最低溫度、以及對應的最小相對濕度和最大相對濕度，為建築氣候設計奠定了數據基礎。 -
On the basis of abundant materials, the paper mainly utilized the qualitative methods combining with some quantitative tools, studied the historical documents and statistical data of world economy and trade since 1431, some of which is much precious. then the author got several new conclusions in the historical and cross - section view. the paper is arranged in a logical order as much as possible for better understanding
論文在充分佔有資料的基礎上，以歷史的視角結合橫斷面數據，運用定性為主、定性與定量相結合的研究方法，盡可能地查閱了1431年以來的歷史文獻和統計數據（其中有些數據甚為珍貴） ，從中得出了若干具有新意的結論。
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