natural increase
英 [ˈnætʃrəl ɪnˈkriːs]
美 [ˈnætʃrəl ɪnˈkriːs]
网络 自然增長; 自然增加; 人口自然增长率; 自然增长
双语例句
- Population grew both as aresult of natural increase and of continued immigration.
人口的增长是自然增长和不竭移民的结果。 - Excessive caffeine consumption, that's around 6 cups of coffee a day, can be harmful as it increases the heart rate, and this combined with the natural increase in heart rate due to stress has the potential to be very dangerous.
过度摄入咖啡因（如每天喝6杯咖啡）是有害的。因为咖啡因能提高人的心率，外加上由压力造成的心率提高，会使人的健康受到潜在的威胁。 - Consequently, the rate of natural increase dropped from eight to four per 1000 over the decade.
因此，过去10年间，自然增长率由千分之八下降至千分之四。 - The preimaginal period was prolonged, and the net reproductive rate ( Ro), innate capacity for increase ( Rm) and finite rate of natural increase(λ) were all decreased.
成蚊前期历期时间延长，净增殖力、内禀增长力、增殖有限速率都有所下降。 - Natural increase simply measures the excess of births over deaths.
人口的自然增长是出生抵消死亡后的增长。 - The unemployment rate actually rose, to9.1%, in May: the rate of job creation is barely keeping track with the natural increase in the working-age population.
五月份失业率则达到9.1%。再就业机会几乎与工作人口的自然增长率一致。 - From youth to the old age, the change in appearance should keep pace with the natural increase of age and keep in harmony with the natural rules.
从青年到老年，容颜仪态的变化应该和年龄的自然增长保持同步，和自然规律保持和谐。 - A natural increase in stress hormones during pregnancy can trigger depression and increase the risk of a pre-term birth.
怀孕期间应激荷尔蒙的自然增加可以导致抑郁，加大早产风险。 - What is worth mentioning is that the natural increase rate in Shanghai is negative for the first time in history.
值得注意的是上海的自然增长率历史上第一次出现了负数。 - Since natural increase rate kept unchanged in the past century and could remain the same in the future, Europe's population is well on the way to become irreversibly older.
由于自然增长率在过去一个世纪乃至未来的变动，欧洲人口已不可逆转地老龄化，其中位年龄在各大洲中是最高的。 - The natural increase and movement of the population of villages are the main factors influencing village growth.
影响村落生长的因素主要是村落人口的自然增殖与流动。 - An Analysis of Development of Natural Increase in the Population of Wuxi County
无锡县人口自然增长发展的分析 - The humification coefficients of plant residues of common vetch, sunnhemp, rice straw and sawdust in lateritic red loam in Nanning prefecture, and the natural increase and decrease rates of soil organic matter were investigated.
本文探讨了苕子、柽麻、稻草和锯木屑四种植物残体，在南宁地区赤红土中的腐殖化系数和土壤有机质的自然增减率。 - 8, Big cities grow more by migration than by natural increase in the process of urbanization, and attract population from long distances.
8，城市化过程中大城市迁入人口比重大，吸引迁移的范围广。 - This paper discussed some special one-special ecological models except Lotka-Volterra model which have non-linear intrinsic rate of natural increase, and get the properties of the solutions of them.
讨论和归纳了常见的Lotka-Volterra模型以外的一些特殊的单种群生态模型，分析了它们的解的正性及其他一些解的渐近性态。 - From Lowering Fertility to Stabilizing Low Fertility: a Research on Factors Associate with Fertility Rate and Policy Implications in Context of Negative Natural Increase in Shanghai
从降低生育率到稳定低生育率&自然负增长背景下的生育率影响因素及生育管理研究 - In accordance with the natural increase rate of population and the trend for Shandong provincial urbanization development in the next several decades, this thesis forecasts the population with water supply in the various towns;
本文根据今后几十年人口的自然增长率和山东省城市化进程的趋势等，预测了各市县区用水人口数量； - Some experts, scholars and officials think that the economy of Thailand has already got away from shadow of the crisis and go on the natural increase way.
一部分专家、学者、政府官员认为泰国经济已经摆脱了危机的阴影，走上了正常的增长轨道。 - Life Table and the Rate of Natural Increase in Sichuan Sika Deer
四川梅花鹿生命表和种群增长率的研究 - Moreover, the loading effects of natural zeolite increase both the activity and the anti-death ability of the photocatalysts.
而沸石的引入不仅提高了光催化剂的效率，而且也增强了光催化剂的抗失活性能。 - Except the third census in 1982, in all census years the annual average population natural increase rates exceed the national level.
除1982年第3次人口普查外，其它普查年年均增长率高于全国平均水平。 - With the stability of low fertility level, the trend of low birth, low death and low natural increase has been formed. The influence of natural change of population on population structures is decreasing.
随着我国低生育水平的逐渐稳定，低出生、低死亡和低自然增长的趋势已经形成，人口自然变动对人口各种结构的影响逐渐减弱。 - In view of the reality was that the natural increase of its own population can not meet the high demand for labor, Australia Government has developed a large-scale national immigration scheme.
鉴于通过本国人口的自然增长无法满足对劳动力大量需求的现实，澳大利亚政府遂制订了大规模的国家移民计划。 - In recent years, global climate change, natural disasters increase in frequency, affecting the stability of food production. 4.
近年受全球气候变化影响，自然灾害发生频率增加，影响粮食生产稳定性。 - There is a rising trend in the amount of wheat stocks, natural increase marginally, also showed that the wheat industry is a supply and demand equilibrium situation, a year to maintain a certain inventory.
小麦库存量有逐年增加的趋势，然增加幅度不大，亦显示小麦产业属于供需均衡态势，每年库存量维持一定。 - The third chapter is related to the natural increase of the population in West Han Dynasty.
第三章对西汉各时期及整个西汉一代的人口平均自然增长率进行了研究。