| 1. | Permanent in a predator - prey system by nonlinear controls
被捕食系统永久持续生存 |
| 2. | Permanence of a kind of stage structured predator - prey system
一类阶段结构的捕食系统持续生存 |
| 3. | The permanence of a prey - predator system with stage structure
一类具有阶段结构捕食系统的永久持续生存 |
| 4. | Persistence and extinction of an individual in a polluted environment
在污染环境中个体的持续生存与绝灭 |
| 5. | Persistence for an asymptotically periodic competitor - competitor - mutualist diffusion system
互惠扩散系统的持续生存性 |
| 6. | The consistent and sustained survival of predation system with holling function reaction
功能反应的捕食系统的一致持续生存性 |
| 7. | Conditions for the permanence and the extinction of the predator are obtained
得到了系统持续生存的条件，并得到了渐近稳定的周期解。 |
| 8. | Then one can easily obtain the existence of periodic solution of the chemostat model
然后在一致持续生存的条件下得到了该系统周期解的存在性。 |
| 9. | Conditions for permanence is established via the method of comparison involving multiple liapunov functions
进而，利用李雅普诺夫函数和比较定理确定了持续生存的条件。 |
| 10. | In the study of the population dynamics , the population ' s persistence is a very interesting and important problem
在种群动力学的研究过程中，种群的持续生存问题一直倍受关注。 |
