decline in population 中文意思是什麼

decline in population 解釋
人口減少
  • decline : vi 1 下傾，下降；跌落；歪斜；（樹枝等）下垂，（頭）低下。2 衰落，衰老。3 墮落，退步；落魄。4 接近...
  • in : adv 1 朝里，向內，在內。 A coat with a furry side in有皮裡子的外衣。 Come in please 請進來。 The ...
  • 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。
  1. Once a draw for pari - mutuel betting among the large population of horse racing fans employed by the steel industry, mountaineer racetrack faced the nationwide decline in racing popularity in the decade of the 80 ' s

    大概的意思是：曾經一度把在鋼鐵業中許多賭馬迷吸引過去的賽車，在80年代中的十年裡面臨的是全國范圍內的下滑。
  2. The african lion is classified as vulnerable on the iucn red list of threatened species due to a continuing decline in the species ' population

    由於數量年年減少，非洲獅目前被納為自然保育聯盟瀕臨絕種生物紅皮書清單上的一條。
  3. This study deals with butterfly diversity and assessing endangered species in natural reserve of baishuijiang in gansu province. the research includes field investigation, observation at certain time and places, captive breeding in experimental area, capture - recapture etc. the biology of four important butterfly species is studied, especially focusing on the natural population life table, habitats, population structure and mobility of byasa impediens. the population developing trend and key factor that result population decline and fluctuation of troides aeacus and byasa impediens are analysed

    本文在甘肅白水江自然保護區碧峰溝通過野外調查、定點定時觀察、實驗地飼養、標記重捕等方法研究了碧峰溝的蝶類多樣性並進行了局部瀕危評估；研究了四種重要蝶類的生物學特性；對長尾麝鳳蝶的生境、自然種群生命表、種群結構、種群移動性進行了深入研究，並估測了各種種群參數，分析了種群發展趨勢。
  4. It is generally believed ( = thought ) that the chief reason for the increase in population in developed coutries is not so much the rise in birth rates as the decline in death rates as a result of the improvement in medical care

    （引證觀點）人們普遍認為，在發達國家人口增長的主要原因與其說是出生率的上升，還不如說是由於醫票母納頻氖顧勞雎氏陸盜恕
  5. Since 1979, when the mainland embarked on the road of economic reform, there were rapid population increases in cities and towns and the development of industries along the dongjiang river catchment area. the guangdong authorities did not adequately control pollution and failed to protect the surroundings from human settlements and industry. this contributed to the continuous decline in the quality of the dongjiang water

    自1979年中國實行經濟改革開放后，東江沿岸的工業發展及城鎮人口增長十分迅速，廣東省政府對污染工業及生活污水排放的管制滯后，沿江市民的環保意識低落，使近年來東江河水水質不斷下降，港府過濾東江原水的過程變得復雜，過濾原水的成本亦因而不斷上升。
  6. According to the live coefficient c, we modified the predictions for this age group and come to a conclusion that is corresponding to actual field data. in other words, the numbers of - age and - age were nearly zero with their densities below 4 / hm2. these results suggest that l. lagurus population began to decline

    運用校正後的存活系數繼續預測，其結果與2001年9月的野外調查結果基本一致，證實當年草原兔尾鼠的數量非常少，低於4 . 0隻/公頃，且齡鼠和齡鼠幾乎為零。
  7. Based on these results, the strategies for conservation e. mollis population to prevent the isolation and fragment of the populations and maintain the high genetic variation among the populations. moreover, it should be avoid the decline of gene flow was resulted from the isolation of the populations so that resulted in the differentiation and genetic decline of the population. finally, it should be adopt some method to spread continuous distribution and extend genetic diversity of the population

    針對翅果油樹的遺傳結構和遺傳多樣性的研究結果，提出了保護翅果油樹種群的策略：維持現有翅果油樹種群高的種內遺傳變異水平，遏制由於人為原因而導致的翅果油樹種群隔離或片段化的趨勢，防止由於種群隔離造成基因流降低，從而引起種群分化和種群的遺傳衰退，並採取適當措施擴大種群的連續性和種群內的遺傳多樣性水平。
  8. As such, poaching of eggs will cause severe population decline. green turtle is a highly endangered species listed under the appendix i of the convention on international trade in endangered species of wild fauna and flora ( cites )

    章《野生動物保護條例》 ，綠海龜被列為受保護動物，綠海龜亦被列入瀕危野生動植物種國際貿易公約的附表中，屬高度瀕危物種。
  9. 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。
  10. If it fails to do so in the next few years, it will store up potential crises for the decade beyond, when china ' s working - age population will begin to decline and a rapidly ageing society will loom closer

    如果無法在未來的幾年解決這些問題，可能會埋下隱患，幾十年後一旦中國的勞動人口數下降，一個迅速的老齡化社會將造成威脅。
  11. The motor car, good roads and the decline in the farming population have recently encouraged town people to buy unwanted cottages in the country encouraged town people to buy unwanted cottages in the country villages

    汽車、良好的道路和農業人口的減少刺激了城市裡的人們來購買鄉村裡多餘的小屋。
  12. It ( population decline ) led to a change in the land / man ratio that made labor scare and forced an increased competition amongst landlords, which ultimately altered the organization of the manor and of agriculture

    這導致了人地比率的變化，使得勞動力稀缺，加劇了地主之間的競爭，最終改變了莊園組織和農業組織。
  13. Hong kong might experience a decline in population as did london and new york in the late 1980s and early 1990s

    香港或會如1980年代後期的倫敦及1990年代初期的紐約般，出現人口下降趨勢。
  14. The authors said that the changing role of women was a significant factor in the projected population decline

    研究者說人口下降的主要原因是婦女在社會中扮演的角色發生了變化。
  15. Under pressure from humans, the chimpanzee has suffered population decline, habitat fragmentation, and in some places local extinction

    在人類的壓力下，黑猩猩們面臨了人口下降，棲息地破壞，還有某些地方的滅絕。
  16. In japan, rural areas have borne the brunt of population decline, which is so bad that one village wants to give up and turn itself into an industrial - waste dump

    在日本，農村是首先受到人口下降沖擊的，情況甚至壞到有個村子要放棄存在，將整個村子變成工業廢物處理場。
  17. Decline in population growth will be studied as an alternative development scenario

    我們會透過不同的假設人口增長情況，探討人口下降的問題。
  18. Because china generally limits each family to one child, the percentage of its population that is working will peak by 2010 and the ratio of workers to retirees will decline dramatically, from six to one in 2000 to two to one in 2040

    由於中國主張的一對夫婦只生一個孩子的政策，青壯年勞動人口占總人口的百分比將在2010年達到高峰，勞動者與退休者之比也將隨即戲劇性下降，這一比率將從2000年的6 : 1下降到2040年的2 : 1 。
  19. Ghanaian president john kufuor, speaking at a joint news conference with president bush, says the prevalence of hiv continues to decline in ghana, from 2. 6 percent in 2006 to 2. 2 percent of the population last year

    迦納總統庫福爾在同布希總統一起舉行的記者會上說，艾滋病在迦納的流行范圍繼續縮小，患病人數占總人口的比例從2006年的2 . 6 %下降到2007年的2 . 2 % 。
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