网络人口倍增时间 网络释义 1. 人口倍增时间 经济学英语... ... 人口变成二倍之时间 Doubling time人口倍增时间Doubling time of population道琼平均值 Dow-Jones average ... www.scientrans.com|基于 1 个网页
Reports on the Population Reference Bureau Inc.'s calculation of the population doubling times of Africa, Latin America and Asia in 1994 based on year-by-year population estimates from the United Nation's 1992 World Population Prospects. Definition of doubling times; Growth rates in the continents...
您现在的位置:生物医药大词典 >> 通用词典 >> 词汇解释: population doubling time population doubling time分享到: 群体倍增时间分类: 细胞生物学 | 查看相关文献(pubmed) | 免费全文文献 详细解释:以下为句子列表:分享到: 赞助商链接 你知道它的英文吗?
您现在的位置:生物医药大词典 >> 通用词典 >> 词汇解释: population doubling time【细胞】 population doubling time【细胞】分享到: 群体倍增时间分类: 科技词汇 | 查看相关文献(pubmed) | 免费全文文献 详细解释:以下为句子列表:分享到: 赞助商链接 ...
Doubling Time Definition One doubling time definition is the duration of time it takes for a population to grow when it is growing at a constant rate. A rate is the extent to which a certain parameter is changing over time (for example, the rate that X population grows is 22 specimens ...
群体倍增时间,popul... ... ) population doubling time 群体倍增时间 )population doubling群体倍增) doubling time 倍增时间 ... www.dictall.com|基于 1 个网页 2. 复制增生的次數 C15的培养液中,每三天计數复制增生的次數(Population doubling) (上图)。
This helps explain why the population has come on“all of a sudden” took from he beginning of human 1ife to the year 1830 for the population of the earth to reach one billion. That repents(缓慢进行) a time span of at least two million years. Then it took from 1830 to 1930 for wo...
Probabilistic population projections have however been developed for specific industrialized countries and are based largely upon time-series analysis. Time-series analysis is inapplicable at the global level due to the lack of relevant data and for conceptual reasons. This paper reports upon a new ...
Currently, the “doubling time” of earth’s population is under thirty-five years, but that time has been shrinking! För närvarande är ”fördubblingstiden” för jordens folkmängd mindre än trettiofem år, och den tiden krymper stadigt!
1) population doubling time 群体倍增时间1. Growth curve,mitotic index,population doubling time were used to compare their gr. 结论 人胚胎脑皮层神经干细胞体外培养存在生长速度慢 ,分裂相所占比例低 ,群体倍增时间长以及其生长需多种细胞因子的联合刺激等问题。