population zero 中文意思是什麼

population zero 解釋
人口零點
  • 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。
  • zero : n （pl zeros zeroes）1 【數學】零；零號。2 零位；零點，起點；（溫度表的）零度，冰點；座標原點；無...
  1. Our population has reached zero growth

    我們人口已經達到零成長。
  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. Due to china ' s huge population base, the absolute increment of population will center around 10 million people annually in the coming years, and it is estimated to hit a peak of 1. 6 billion around 2035 and a zero growth might follow then

    由於中國人口基數過于巨大，中國人口增長的絕對值，在未來一些年份內，仍將保持在每年1千萬左右，預計到2035年前後，中國人口將達到16億峰值，至此，中國人口才將可能實現零增長。
  4. The nearer a society approximates to zero population growth ， the older its population is

    一個社會的人口增長率越接近零，其人口便越老齡化。
  5. The nearer a society approximates to zero population growth, the older its population is likely to be

    一個社會的人口增長率越接近零，它的人口年齡就可能越老。
  6. Planning should target at zero population growth, but not exploiting land from reclamation and rural areas

    未來的規劃應以零人口增長為目標，不宜透過填海及發展市郊地區，增加土地面積。
  7. The nearer a society approximates to zero population growth, the older its population is likely to be ? at least, for any future that concerns us now

    一個社會的人口增長率越接近零，它的人口就可能越老齡化? ?從各方面看，至少我們的未來是這樣的。
  8. Despite her natural zero population growth, singapore increased her population by more than two million foreign talents who will create more wealth for themselves and singapore

    盡管她的人口增長率為零，新加坡卻有200萬的外國人才，這些人能為其自身和新加坡創造出更多的財富。
  9. Although zero tillage technology presents a potentially dramatic breakthrough for planting wheat in rice - wheat system, there are two issues meriting attention : danger of increasing population of stemborers for the following rice crop and the application of fertilizer, particularly n fertilizers

    雖然免耕技術為稻麥制中播種小麥提供了潛力巨大的技術突破，但有二個問題值得注意：后茬水稻螟蟲群體增多的危險和施肥，尤其是施氮肥的問題。
  10. ( 3 ) chapter v. plasma characteristics of rf ion source is investigated. a zero - dimensional numerical dynamic colisional radiative atomic and molecular ( cram ) model is suggested to simulate the microphysical process. all species " population number densities in plasma are calculated in non - thermodynamics equilibrium condition, and proton content in extracted ion current are measured with 60 ? magnetic analyzer

    （ 3 ）提出了高頻離子源等離子體的零維cram模型（ collisionalradiativeatomicandmolecularmodel ） ，計算了非平衡態（ nte ）下等離子體中分子、電子、離子、基態原子、激發態原子等粒子濃度，並在zf - 200kev中子發生器上，用60磁分析器實驗測定了引出束流的質子比。
  11. As land and labour are so much cheaper than purchased inputs, large segments of the population are surviving by opening up new land and employ zero or minimum input techniques that are leading to gradual degradation of the land

    由於土地、勞力比購買物化商品投入要便宜得多，所以大部分人口依靠開墾荒地，不施或少施肥料來維持生計，由此逐漸導致土地退化。
  12. 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。
  13. Testing of multi - dimensional normal population with mean zero

    多維正態總體零均值的假設檢驗
  14. The similar figures indicate that beijing ' s population growth in 2006 was approximately zero, said bureau sources

    衛生局說，北京2006年人口增長接近於零。
  15. Based on this analysis, the author has the new balanced growth path equation including the variable of rate of population aging. using the new balanced growth path equation, the author proves that acre are both positive and negative effects of population aging on economic growth ; meanwhile the author proves that there is a state in which the effect of population aging on economic growth is zero, regard as critical condition. then the author analyzes the effects of changing the rate of population aging on balanced growth path, output, and labor ' s consumption, and gets the different formulas of standard coefficient of retirements income

    在此基礎上推導出包含老齡化因素變量在內的新經濟平衡增長路徑方程；利用新經濟平衡增長路徑方程，證明了老齡化對經濟增長在理論上存在著正負兩方面的作用效應；同時證明了在理論上存在著老齡化因素對經濟增長零作用效應的臨界狀態；分析了老齡化率變動對經濟平衡增長路徑、產出和勞動力消費的影響效應；並給山了養老標準系數的不同臨界點的計算公式。
  16. Undefined population elements get a weight of zero so they won t be picked by the

    未定義的種群元素權重為0 ，所以，為特定網格位置選擇最可能細胞的
  17. In complementary case, sufficient conditions for uniform persistence and extinction of the population are obtained by the theory of uniform persistence of infinite dimensional dynamical systems. especially for the model with equal diffusion coefficients and zero death rates, the global attractivity of the unique positive steady - state solution is proved. in substitutable case, sufficient conditions for uniform persistence and extinction of population are also ob

    首先考慮了具有互補營養的擴散模型，得到了該系統中種群絕滅和一致持續生存的充分條件；並對營養和種群具有相同的擴散系數和種群零死亡率的模型，證明了該系統存在唯一的正平衡解，並證明了該平衡解的全局吸引性。
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