1.
STUDY ON THE DIVISION OF AGE GROUP AND THE AGE COMPOSITION OF POPULATION OF STRIPED HAMSTER IN BEIJING AREA
北京地区黑线仓鼠年龄鉴定及种群年龄组成的研究
2.
Differentiation of population age groups of captive alpine musk deer(Moschus chrysogaster) based on the visible-near infrared reflectance spectra of their feces
圈养高山麝种群年龄组的粪便光谱判别
3.
The first people immunlized with inactivated vaccine against HFRS was 30～39 age group and the next peoples were 40～49 age and 20～29 age group;
30～39岁年龄组，其次是40～49岁和20～29岁年龄组是首选接种人群；
4.
It is therefore essential to know the age distribution in the population.
所以，了解在该种群中的年龄组配状况是很重要的。
5.
Components and age structures of Calamagrostis pseudophragmites population modules in the Yily River Valley area,China
伊犁河谷不同生境假苇拂子茅种群构件组成及其年龄结构
6.
ANALYSIS AND INVESTIGATION ON THE TRACE ELEMENT LEVELS AMONG DIFFERENT AGE GROUPS IN HAIKOU
海口市不同年龄组人群微量元素调查
7.
Age structure is a foundational base to study the population dynamics.
年龄结构是研究种群动态的重要基础。
8.
Research on Population Age of Eothenomys melanogaster
黑腹绒鼠(Eothenomys melanogaster)种群年龄的研究
9.
Numerical Approximate Scheme for Stochastic Age-dependent Population Equations
一类与年龄相关的种群系统的数值解
10.
Determination and Analysis on the Content of Pb in People?s Hair of 3 Age Groups in Hanzhong City, Shanxi Province
汉中市三组年龄段人群发Pb含量测定分析
11.
Application of Life-Table to the Study of Age Structure of Mongolian Oak Population
应用生命表对蒙古栎种群的年龄结构的研究
12.
Optimal Control in Non-Linear Population Diffusion System with Age-Dependence;
与年龄相关的非线性种群扩散系统的最优控制
13.
Study on Otoliths Microstructure of Tanichthys Albonubes and Research on Age Structure of Wild Tanichthys Albonubes;
唐鱼耳石微结构研究及自然种群年龄结构调查
14.
Study on Population Age Structure and Spatial Distribution Pattern of Dryopteris Crassirhizoma Nakai;
粗茎鳞毛蕨种群年龄结构与空间分布格局研究
15.
Bistable Waves for a Single Species Model with Age Structure in 2-Dimension Lattice;
二维格上年龄结构单种群模型双稳行波解
16.
Optimal Harvest Model for Single Species Grouped by Years;
具有年龄结构的单种群最优捕获策略模型研究
17.
Numerical Method for an Age-dependent Model of Single Species Population Dynamics;
年龄相关的单一种群动态模型数值解法
18.
Optimal Harvesting for a Population System Based on Age-Structure
基于年龄结构的种群系统的最优收获控制