population decline 中文意思是什麼

population decline 解釋
人口不足
  • 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。
  • 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...
  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. African penguins ( also called jackass penguins for their donkeylike braying ) face an uphill struggle to rebuild their population after a century of decline

    在近一個世紀的種群衰退之後，非洲企鵝（因為它們的叫聲象驢子，也被稱作公驢企鵝）正面臨著重建族群的重任。
  4. African penguins ( also called jackass penguins for their donkeylike braying ) face an uphill stuggle to rebuild their population after a century of decline

    非洲企鵝（因其聲音象驢，也被稱作驢企鵝）面臨一個艱難的競爭以在一個世紀的的不斷減少后重新增加他們的數量。
  5. A low population is not sufficient to halt a decline.

    低的種群密度不足以立即阻止種群下降。
  6. 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。
  7. 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
  8. 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。
  9. The rate of extinction is higher than reclonizition, which indicates the decline of population. ( 2 ) chilasa epycides : univoltine

    種群在斑塊內處于滅絕、再定居的動態過程，滅絕率大於再定植率，即種群處于下降趨勢。
  10. Pushing for the implementation of development strategies for the far - eastern ecoregion, that will contribute to stop the decline of the far eastern leopard s population

    打擊偷獵活動促請政府為遠東生態區域實行發展策略，協助遏止遠東豹種群下降。
  11. Much of this story is common to the rest of the industrialised world, but because of local peculiarities japan is more exposed to unintended or unwelcome consequences such as accelerated ageing and population decline

    其它工業化社會在很大程度上也都存在同樣的問題，但是由於地方特性的緣故，日本承受的後果更加嚴重，比如老年化和人口減少的加速。
  12. Japan has already entered the phase of population decline. however, the populations of metropolitan areas continue to increase

    日本人口早已進入了減少的階段，但是大都市圈的人口持續增加。
  13. 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。
  14. 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。
  15. 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。
  16. 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。
  17. 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。
  18. Such a discrepancy would have a dramatic impact on the reproductive success of certain fish, and could mean population decline and possible extinction

    這個失衡會直接影響某些魚種的成功繁殖，引起數量的減少，並可能消失。
  19. 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。
  20. Romania ' s demographic outlook is good by post - communist standards, with only a mild population decline that is expected to slow as income levels and health care improve

    按照后冷戰時期的標準，羅馬尼亞的人口情況尚可，隨著收入和醫療水平的提高，預計其人口減少量進一步降低。
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