low fertility 中文意思是什麼

low fertility 解釋
低受腦力
  • low : adj 1 低的；淺的，矮的。 low flight 低飛。 a low temperature 低溫。 low tide [water] 低潮。 The g...
  • fertility : n. （opp. sterility）1. 肥沃，豐饒；肥力，肥（沃）度；（土地的）生產力。2. 【生物學】能育性，繁殖力。3. （思想等的）豐富。
  1. The deficiency of these substances will directly lead to a low productive capacity of animals, a poor resistance, a slow growth of fat, a small output of milk, and a weak fertility, etc. in order to help the herders find solutions to these problems, mr. bazil confected a feedstuff with necessary minerals for local herders based on the results of the float grass testing and his own personal work experience of many years

    去年秋天對當地水草進行檢測，結果發現缺少多種牲畜體內所需的礦物質和微量元素。這些物質的缺乏會直接導致牲畜生產能力低下，抵抗力差，長膘慢，奶產量低，繁殖能力差等。為了能幫助牧民找到解決這些問題的方法，巴茲爾先生根據水草檢測結果及自己多年的工作經驗為當地牧民配製了所需礦物質飼料。
  2. 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。
  3. Disappointingly, the bush administration has turned its back on fertility control in poor countries ? despite overwhelming evidence that fast, voluntary and highly beneficial transitions to low fertility rates are possible

    令人失望的是，盡管有汗牛充棟的證據顯示，現在已經有快速、自願性且極為有效的降低生育率方法，美國總統布希對貧窮國家的節育議題，卻不聞不問。
  4. In reproductive phase, however, the ratio of low - fertility plants first increased then decreased as genetic relation between exogenous donors and a. thaliana reduced

    但在生殖生長階段，低育性株率的變化隨著親緣關系的從近到遠呈現出一種先升高再降低的變化趨勢。
  5. And the national fertility rate change is the 20th century began in the early 1970s to the national family planning policy intervention and quickly from the high level of fertility to low fertility level

    而全國性的生育率轉變則始於20世紀70年代初期國家計劃生育政策的介入，並迅速由高生育率水平轉向低生育率水平。
  6. 17. when fertility drops to a particularly low level below replacement and the mortality rate remains low, the pace of population aging inevitably quickens

    17 .若生育率下降至遠低於更替水平，而死亡率繼續維持在低水平，人口老化無可避免會加快。
  7. Thus, establishment of sustainable agriculture on the often shallow, low fertility and sloping soils of the rainfed uplands in s e asia demands first a buildup of soil fertility

    因此在東南亞雨養旱地大多是淺薄而缺乏養分的坡地土壤上建立持續農業，首先以及歸根到底是需要培肥土壤。
  8. As regards fertility status, almost all soils are deficient in n and about 90 % are low to medium in p

    至於肥力狀況，幾乎所有土壤缺氮，約90 %土壤低磷或中磷。
  9. Although this kinds of drought - resistance germplasm have a low absolute yield, their fertility and stability of yield under drought and infertile condition preceded crossbreed

    這類地方種質的絕對產量不高，但其穩產性和在乾旱貧瘠條件下的豐產性優于雜交種。
  10. 3 the author analyzes the productive and opening potential and forecasts the demands of some kinds landuse and draws some conclusions : ( l ) the main cause for low production and income is the shortness of water and the poor fertility of land ; ( 2 ) constructive land is not suitable for farming and should be used for economy construction, and this is the main path to keep the total number of plantation in balance. 4. according to the land use, the author discover the unsustainable factors and use synthetical index method to evaluate the sustainability of landuse and the results are these : ( l ) synthetical and monomial value increase gradually with the change of time and sustainable degree of landuse rises year by year ; ( 2 ) the artical compartmentalizes the sustainable landuse into four grades : prophase, primary period, basic period and sustainable period according to the synthesical value with 30 %, 60 % and 85 %

    4根據酉陽縣土地資源利用現狀，在評價模型採用綜合指數法進行評價的基礎上，結合單指標多角度評價法，找出土地利用過程中存在的不可持續性因素，採用綜合指數法對酉陽縣土地資源進行可持續利用評價，結果顯示: （ l ）綜合評估值隨時間變化呈增加的趨勢，而且單項指標的評估值也逐漸提高，可持續利用度在逐年上升; （ 2 ）根據事物發展階段論，按綜合評估值為30 % 、 60 %及85 %將酉陽縣土地可持續利用劃分為可持續利用的前期階段、初期階段、基礎階段和持續階段等四個等級，從酉陽縣1980年、 1990年以及2000年總的土地可持續利用綜合評估值來看，酉陽縣到2000年土地利用管理仍處在可持續利用管理的初期階段，離土地可持續利用的目標還相差較遠。
  11. A low fertility rate and increased life expectancy are the main reasons behind the rapid aging

    出生率低和人的壽命的增長是造成加拿大人口老年化速度增快的主要原因。
  12. Low fertility and space of school attendance for mobile juvenile students in city

    少年在城就讀的發展空間
  13. Building modern fertility culture and stabilizing low - fertility level

    建設現代生育文化與穩定低生育水平
  14. Stabilizing low fertility level and establishing social security system in rural china

    政策過程中的公關思考
  15. On family planning administrative law - enforcement under the condition of low fertility level

    低生育水平條件下計劃生育行政執法探討
  16. The analysis shows that although the village has been in low fertility level for so long time, the low fertility is still unstable

    文章考察了自發性控制力、誘導性控制力和強制性控制力在維持東村人口低生育水平的作用機制，並得出東村的低生育水平仍然不穩定的結論。
  17. Coupled with the low fertility rate, sustainability of the current long - term care financing arrangement will become a critical concern

    在經濟低迷的情況下，此現象只會日趨嚴重，長者被迫提早退休的情況亦屢見不鮮。
  18. Analyzing the factors affecting the stability of the low fertility rate in china

    我國穩定低生育水平影響因素分析
  19. The low fertility rate in many of that continent ' s more developed countries means their populations are ageing and shrinking

    歐洲大陸的許多發達國家出現了過低的生育率，而這意味著這些國家的人口正在面臨老齡化與減少。
  20. Results showed that pollen germination rate, pollen stain - ability, pollen grain amount and so out had remarkable difference between the two cultivars and lipeng no. 2 pollen belonged to low - fertility type

    結果表明，麗? 2號花粉發芽率、花粉染色活力和花粉粒數量等與有核對照存在顯著性差異，屬于低育型花粉。
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