| 1. | The number of people searching for work in a less developed country depends primarily on the size and age composition of its population .
在欠发达国家中，寻求职业的人数主要取决于该国人口数量的多少与年龄结构。 |
| 2. | Population age structure and life table of black bear
黑熊种群年龄结构和生命表初探 |
| 3. | Model of ecology birth - death process with age structure
带年龄结构的生态生灭过程模型 |
| 4. | Dynamics of predator - prey system with age structure
具有年龄结构的捕食系统的动力学行为 |
| 5. | A analysis on status qua of age structure of daur population
达斡尔族人口年龄结构现状分析 |
| 6. | The equilibrium solution of nonlinear age - structured population
非线性年龄结构种群的平衡解 |
| 7. | Analysis of an epidemic model with age of vaccination
一类带接种和年龄结构的流行病模型分析 |
| 8. | The stability of an age - structured epidemic model with vaccination
具有年龄结构的接种流行病模型的稳定性 |
| 9. | The age spectrum of rhizome is very changeable during the growing season
在生长季的不同时期，根茎的年龄结构有较大的变化。 |
| 10. | On age composition of supervision personnel and occupation service life of chief supervisor
关于监理人员年龄结构与总监的执业年限 |
