natural population growth rate 中文意思是什麼

natural population growth rate 解釋
人口自然增長率
  • natural : adj 1 自然界的；關于自然界的。2 天然的；未開墾的；野生的。3 固有的 生來的 天賦的（opp acquired）...
  • population : n. 1. 人口；人口總數；全體居民；人口的聚居。2. 物的全體[總數]；【生物學】蟲口；種群（量）；群體；族，組，個數；【統計學】對象總體，全域。3. 【物理學】布居；密度。4. 〈罕用語〉殖民。
  • growth : n. 1. 生長，成長，發育，發展。2. 栽培，培養。3. 生長物，產物；【醫學】瘤，贅生物。4. 【經濟學】（資本價值與收益的）預期增長。
  • rate : n 1 比率，率；速度，進度；程度；（鐘的快慢）差率。2 價格；行市，行情；估價，評價；費，費用，運費...
  1. In 2000 the natural growth rate of the qinghai population was

    2000年，青海省人口的自然增長率是多少
  2. Although in recent years, china ' s population structure has changed into " three lows " complexion of low birth rate, low natural growth rate and low mortality rate thanks to china ' s unremitting efforts to carry out the family planning policy, a high growth is concomitant with the low birth rate

    雖然近年來，由於計劃生育政策的持續不懈努力，中國人口結構已轉變成低出生率、低自然增長率、低死亡率的"三低"局面，但與低出生率相伴生的，卻是高增長量。
  3. China is a developing country, having expansion section and numerous population, but its economy is not imbalance among vary areas. in the westward area of the china, there is weak ecosystem, high population natural growth rate, and big stress of offering unemployed persons an occupation, little number and low quality of human resource

    我國是一個發展中國家，地域遼闊、人口眾多、地區之間經濟發展不平衡，尤其是西部地區生態環境脆弱，人口自然增長率高，勞動就業壓力大，人力資源數量不足、質量不高，經濟落後，這些問題已經成為西部乃至全國經濟可持續發展的突出障礙。
  4. As economic development and population control promote each other, these areas have seen a transition, in a relatively short period of time, to the modern population reproduction pattern characterized by a low birth rate, low death rate and low natural growth rate

    經濟發展與人口控制相互促進，使這些地區在較短時間內實現了向低出生、低死亡、低自然增長的現代人口再生產類型的轉變。
  5. Measures should be taken to improve the economic compensation system for paid use of the natural resources and the renewal of resources, enhance the comprehensive use rate of resources and economic profits, stop the destructive exploitation of natural resources, alleviate the controversy between the explosive population, the economic growth and the limitation of the resources

    完善自然資源有償使用和資源更新的經濟補償制度，提高資源綜合利用率和經濟效益，遏制資源破壞性開發，緩解人口和經濟增長同資源有限性之間的矛盾。
  6. They are agricultural productive materials price growth rate, sown area of grain crops growth rate, grain yield per area growth rate -, natural disaster covered grain areas growth rate, net grain import change rate, grain reserve change rate, population growth rate, per income growth rate, city and town population growth rate, food industry production value growth rate, year - end pig number growth rate, medical & pharmaceutical and textile industry production value growth rate, grain marketization degree, inflation rate using the previous year as base year ( preceding year = 100 ), public grain purchases price growth rate, investment in agricultural science and technology growth rate, investment in agricultural infrastructure growth rate, growth rate of graduates number from agriculture, forestry, science & technology universities and colleges and specialized secondary schools, government expenditure for agriculture and agricultural credit growth rate, international grain price growth rate, rmb exchange rate growth rate, last grain price growth rate, economic crop price growth rate, meanwhile, a new method is attempted to be used in this paper and the grain price early - warning problem is transformed into machine learning problem by introducing statistic learning theory and svm method which are gaining popularity in machine learning field at present in the world

    在此基礎上，篩選出23個警兆指標：農用生產資料價格增長率、糧食播種面積增長率、糧食單產增長率、糧食受災面積增長率、糧食凈進口量變化率、糧食儲備變動率、人口增長率、人均收入增長率、城鎮人口增長率、食品工業產值增長率、豬年末頭數增長率、醫藥紡織工業產值增長率、糧食市場化程度、以上年為基年的通貨膨脹率、國家糧食定購價格增長率、農業科技投入增長率、農業基礎設施投入增長率、農、林、科技高校大、中專畢業生人數增長率、財政支農資金比重及農業信貸增長率、國際糧食市場價格增長率、人民幣匯率增長率、上期糧食價格增長率、經濟作物價格增長率。同時論文在預警方法上作了新的嘗試，把糧食價格預警問題轉換成一個機器學習問題，引進當前國際上機器學習領域中比較熱門的統計學習理論和支持向量機方法，用順序回歸演算法對歷史數據進行學習建立了糧食價格預警模型。
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