population reproduction 中文意思是什麼

population reproduction 解釋
人口再生產
  • 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。
  • reproduction : n. 1. 再生產，再現；【心理學】再生作用。2. 復制（品），復寫，仿造；轉載；翻印。3. 生殖，繁殖。
  1. When economically still underdeveloped, china has accomplished a historic transition in population reproduction pattern from one featuring high birth rate, low death rate and high growth rate to one featuring low birth rate, low death rate and low growth rate in a relatively short period of time, a change that took decades or even up to a hundred years for developed countries to realize in the past

    中國在經濟不發達的情況下，用較短的時間實現了人口再生產類型從高出生、低死亡、高增長到低出生、低死亡、低增長的歷史性轉變，走完了一些發達國家數十年乃至上百年才走完的路。
  2. These bacteria are transmitted through the cytoplasm of eggs and have evolved various mechanisms for manipulating reproduction of their hosts, including cytoplasimic incompatibility ( ci ), parthenogenesis, feminization, male killing, fecundity or fertility modifying etc. wolbachia are common and widespread bacteria infecting 17 % insect population, 17 crustacean species, mites and many nematodes

    這些共生菌通過母系遺傳參與調控寄主的多種生殖活動，包括細胞質不親和現象、誘導孤雌生殖現象、雌性化、雄性致死以及調節寄主生殖力等。 wolbachia的分佈十分廣泛，目前已經發現在超過17的昆蟲種群以及17種甲殼綱動物、蟎蟲、線蟲體內發現了它的存在。
  3. So, population reproduction is not steady, and the get to the permanent steady quiescence need a long time. from the age structure, it also shows that during these twenties years, hetian belong to the intergraded reproduction of high birthrate, low death rate and high growth rate

    同樣，年齡構成指標從靜態和動態角度出發也反映出和田在近20年前後是屬于高出生、低死亡、高增長的過渡階段的人口再生產類型，年齡結構較為年輕。
  4. The research areas focus on the relationships between animal survival, reproduction, population density, population distribution and its environments, endangered mechanism of rare and threaten animal, and conservation of wildlife diversity and its habitats using ecological or molecular techniques

    利用宏觀及分子生物學技術，開展亞熱帶濱海資源動物的生物多樣性研究，解決資源動物的保護生物學及可持續利用等問題。
  5. Nrr is 2. 36 ( higher than 1 ), and it shows that population reproduction is the expanding reproduction. if the population now develops toward the steady reproduction, population will grow at the rate of 28. 889 %, and then it make the big population number

    Nrr為2 . 36大於1 ，表明此時人口再生產類型是擴大再生產類型，如果人口保持此階段人口再生產狀況長期發展下去，人口將按一個固定增長率k = 28 . 889發展下去，產生巨大的人口基數。
  6. In the genetic process of reproduction, crossover and mutation of the chromosomes in this method, these operators pr, pc and pm are produced randomly within some space, the scale of population and all kinds of genetic probability are also adjusted randomly so that the diversity individuals of population is ensured. the ga of dynamic population scale passes more information of paternal chromosomes to the offspring, which is beneficial to search the global optimization or quasi - global optimization

    該方法在染色體進行繁殖、交叉、突變的遺傳過程中，在某一范圍內隨機選取p _ r ， p _ c ， p _ m ，動態調整種群規模，保證了種群個體的多樣性；選擇同父本分別進行三種遺傳過程使得父本染色體中有更多的信息傳遞給子代，這有利於搜索全域最優解或準最優解。
  7. The mechanism about seed actual reproduction and artificial restoration under disturbance was investigated by using systematic sampling in the typical area of reaumuria soongorica population at mid - young age in desert grassland region, according to two similar habitate involved five different disturbance characteristics

    摘要2003年7 10月，選擇黃土丘陵區荒漠草原地帶兩個相似生境、 5個不同干擾特徵的中幼齡紅砂種群更新恢復類型區為研究物件，採用系統取樣法或樣行法，開展了干擾條件下的紅砂種群種子更新與恢復機理的初步研究。
  8. If the population of china walked past you, 8 abreast, the line would never end because of the rate of reproduction

    如果讓所有的中國人按8個一排並肩從你身邊經過，你將永遠不會看到盡頭，因為他們的生長率會使人數連綿不絕。
  9. Though dryopteris crassirhizoma usually vegetated under forest and had definite overcast endurance, the excessively overcast environment went against the growth and reproduction of dryopteris crassirhizoma population

    盡管粗莖鱗毛蕨常生長在林下，有一定的耐陰性，但是過陰環境不利於粗莖鱗毛蕨種群的生長發育和繁殖更新。
  10. 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。
  11. We compared the population size after spawning this year with the size before reproduction season of last year to deduce the degree of population fluctuation. the scope of investigation is almost the same with that of last year except that the middle and upper segments of skyline creek were excluded

    本年度的調查范圍和去年度所做的普查范圍大致相同，但司界蘭溪中、上游溪段在去年度調查結果顯示已無魚群分佈蹤跡，同時因為本年河川流量過大，故於本年度並未調查。
  12. Check dams, typhoons and rising temperature interact to suppress the salmon population repeatedly each year. the population must be uninterruptedly enlarged by artificial reproduction before the demolition of check dams to fortify the resilience and stability of salmon population under the impacts of natural calamities

    攔砂壩、臺風與逐年升高的水溫已使櫻花鉤吻鮭面臨嚴重生存危機，建議壩未拆除前，必須持續人工繁殖及放流工作，以擴大族群量，增加其天災沖擊下之回復力與穩定性。
  13. However, d. versipellis also processes vegetative reproduction by rhizome and root. based on optimization of reaction conditions and systems, rapd - pcr was performed to detect the genetic diversity and popolation - genetic structure of the five d. versipellis populations and are d. pleiantha population

    在反應體系和反應條件優化的基礎上，利用rapd標記對八角蓮5個種群和六角蓮1個種群進行了遺傳多樣性、種群遺傳結構評價和取樣策略研究。
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