population decrease 中文意思是什麼

population decrease 解釋
人口減少
  • 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。
  • decrease : n 1 減少,減小,減退。2 減少額,減小量。vt vi 減,減少,減退;(溫度表等)下降。 decrease the num...
  1. On the premise of stabilizing a low fertility level, china will achieve a gradual transition from a low population growth rate to zero growth, and the total population, after reaching its peak figure, will slowly decrease

    在穩定低生育水平的前提下,中國人口將由低增長逐步過渡到零增長,人口總量達到峰值后開始緩慢下降。
  2. There has been a steady decrease in population in this city

    這個城市的人口在持續下降。
  3. Chapter 2 is " review in the perspective of history ", it analysis the history progress and the basic law evolved in the chinese farmland institution, it indicates that the population pressure is the basic motive to drive the transition of the chinese farmland institutions. the population pressure would inevitably cause social crisis if rural labor can not be transferred completely, and finally leads compulsive population decrease through the dynasty change

    第2章「歷史視角的回顧」著重分析中國農地制度演進的歷史進程和基本規律,指出人口壓力是推動中國農地制度變遷的基本動力,如果不能實現農村勞動力的有效轉移,人口壓力必然導致社會危機,並以「改朝換代」式的大動蕩實現人口數量的強制性(災難性)調整。
  4. In 1980s diet bamboo of the giant panda was blooming. all these are responsible for the decrease of the population size of the giant panda. to prevent the further degradation of the panda habitats and protect this endangered species, we should assess impacts of human duisturbance on the giant panda and its habitats

    為確切掌握大熊貓的數量、分佈、棲息地環境等情況,制定切實可行的保護管理計劃,我們以王朗自然保護區的大熊貓調查資料對其棲息地情況進行了詳細研究,王朗自然保護區是岷山的腹心地帶,保護好這個大熊貓種群是保護大熊貓物種的重要組成部分。
  5. Plant population and plant vigor decrease rapidly after the first harvesting cycle

    第一輪收獲后植物密度和長勢很快下降。
  6. Phase i : 1950s 1980s. in this phase, humans ’ limited cognition of nature laws, increasing demands caused by population explosion and unreasonable utilization of natural resources lead to the sharp decrease of runoff volume and shrink of the lake area. the ebinur lake area change converses from the condition subordinate to nature to human activity

    即第一階段: 20世紀50 80年代末,此階段由於人類對自然規律認識的局限性,以及人口增長造成的需求增長,不合理利用水土等自然資源,導致入湖水量劇減,艾比湖呈現急劇縮小的趨勢,湖面變化從受控于自然條件向受控於人類活動方向轉變。
  7. The comparative ability of resources for bearing the pressure of population, the efficiency of resources utilization, the efficiency of energy utilization, the rate of resources reserves decrease, the surcharge of the resources, the resources possessed by per capita, the consumption of resources by per capita, the index of resources guarantee ' s degree, the gross consumption of substance, the intensity of the consumption of substance, and the productivity of substance and so on indexes for natural material resources were chose to construct a index system that could be used to tell the degree of the sustainable development for certain material flow ( short for mf )

    本文簡要介紹了可持續發展及區域物料流的概念。選取相對資源承載力、資源利用效率、能源利用效率、資源儲量變化率、資源超載人數、人均資源佔有量、人均資源消費量、資源保證程度指數、物質消耗總量、物質消耗強度及物質生產力等指標建立了一套自然材料資源的可持續能力評價指標體系。概括介紹了中國西部的兩個典型省區和一個典型地區,即重慶、甘肅及攀枝花地區典型材料行業發展現狀。
  8. However under the pressure of great population and food supply, agriculture has been managed in an extensive way, utilizing resources by plunder and polluting environment at random, which resulted in unbalanced ecological structure and decrease in production capacity

    但是,長期以來在龐大的人口負荷及糧食供給壓力下,我國農業以粗放經營形式,掠奪式地利用資源,任意污染環境,導致農業生態系統結構失衡,生產能力下降。
  9. The rapid development of economy, rapid process of urbanization and the continuous increase of population bring more and more stress to arable land, the total area of arable land and the average area per head of arable land decrease increasingly. and with the improvement of the people ' s standard of living, requirement to farm produce is higher. population, land and grain will be in strained state

    當前我國經濟的迅速發展、城市化進程的不斷加快,及人口的持續增長對耕地造成的壓力越來越大,耕地總面積及人均耕地面積日益減少,且隨著人民生活水平的提高,對農產品的需求越來越高,人口、土地和糧食三者之間的矛盾日顯突出。
  10. The water resources per capita in china is 2220m3, and it is predicted that, in the year 2030, when the population reaches 1. 6 billion, the number will decrease to 1760m3. according to the well accepted criterion, a country with lower than 1700m3 per capita water resources will be considered as a country with water shortage problems

    我國水資源人均佔有量2220m 』 ,預測到2030年人口增至16億時,人均水資源佔有量將降到1760m 』 ,按國際上一般公認的標準,人均水資源少於1700m 』為用水緊張的國家,我國未來水資源形勢是嚴峻的。
  11. As the ratio of working to total population will gradually decrease, we need to be prepared and continually upgrade our productivity and competitiveness ; and

    工作人口占總人口比例亦將會逐步下降,所以,我們要作好準備,不斷提高香港整體生產力及競爭力及
  12. The population is expected to increase to one point five thousand million people in twenty - five years and then begin to decrease

    專家預計25年後中國人口將達到15億,然後開始漸漸減少。
  13. The population of this city is on the decrease

    (這個城市的人口正逐漸減少。 )
  14. Aging population will affect economics on many aspects, such as labour deficiencies, decrease in output efficiency, private savings decline and lack of capital. it can also play a negative role in trade and investment and will put significant upward pressure on total government spending stemming from increased demands for health care services and higher public pension payments

    人口老齡化會造成勞動力缺乏;在某些行業造成生產效率的下降;導致儲蓄額下降,進而減少資本形成,影響貿易和投資;養老金數額比例隨之增大,醫療和保健開支增多,使財政承受越來越大的壓力。
  15. Health and social welfare costs associated with the ageing population would increase, while the number of salaries tax payers would decrease

    人口老化會引致政府在醫療和社會福利方面的支出增加,但繳納薪俸稅的人數卻會減少。
  16. In the second charper, two reformed metheds has presented, which are competition adaptation - ga based on elitist and dual mutation adaptive - ga which can increase the population diversity and can decrease the dependence of genetic algorithms " result to the control parameter of operators and the status of initial population. to testify their abilities of algorithms, some studies have excuted which included the study to optimize parameter for pid and the study to multivariable intelligent decoupling control for mimo system. the outcomes have showed us that this amendment has a better effective than conventional means and the genetic algorithms which have no change

    第二章中,在已有文獻的基礎上,創新性的提出兩種改進演算法:基於最優保留的聯賽競爭機制遺傳演算法( competitionadaptation - gabasedonelitist )和雙變異自適應遺傳演算法( dualmutationadaptive - ga ) ;通過對演算法中選擇運算元和變異運算元的有效改進,提高了演算法的尋優能力和尋優效率,增加了群體中個體模式的多樣性,對于演算法中存在的欺騙問題、早熟問題以及成熟前收斂問題有明顯的改進作用。
  17. All proinces and one territory reported a decrease of at least 17 per cent in hospital admission rates, after adjusting for population growth and aging of the population

    在人口增長和人口年齡校正後,所有的省和一個地區報告的住院率減少至少17 % 。
  18. Interestingly, a recent report from hong kong centre for health protection also stated that 30 % of hong kong population lacks regular exercises, which is consistent with this study of which a decrease of aerobic capacity in that age group was shown

    有趣的是,最近香港衛生防護中心發表的報告指出30香港人口缺乏定時運動,這個結論與上述研究的發現一致,帶氧能力在上述年齡組別下降較大。
  19. Under the pressures of population increase, arable land decrease, water shortage, planting area reduction of three major grain crops ( rice, wheat and maize ) in recent years, there is a potential crisis in food security in china

    摘要在人口增加、耕地面積減少、水資源缺乏以及水稻、小麥和玉米三大糧食作物種植面積下降等因素的影響下,中國食物安全存在著潛在的危機。
  20. Population experts say russia faces the most severe population decrease of any country

    人口專家聲稱俄羅斯目前面臨嚴重的人口衰減。
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