4) Permanence
[英]['pɜ:mənəns] [美]['pɝmənəns]
永久生存
1.
The effect of diffusion on the permanence of the population in a polluted patch is studied by setting up a single population diffusive system in two patches.
文中所考虑的是污染斑块上外界毒素的输入量存在极限值的情形 ,得到如下结论 :无扩散时 ,若此极限值超过某一定值 ,则污染斑块上的种群趋于灭绝 ;扩散存在且两斑块上种群的扩散系数满足一定的条件时 ,则可使该系统的种群永久生存或灭
2.
The Effect of Diffusion on the Permanence of Smith Population in the Polluted Patch;
文中所考虑的是污染斑块上外界毒素的输入量存在极限值的情形,得到如下结论:无扩散时,若此极限值超过某一定值,则污染斑块上的种群趋于灭绝;扩散存在且两斑块上种群的扩散系数满足一定的条件时,则可使该系统的种群永久生存或灭绝。
5) Permanent coexistence
永久共存
6) value perpetuity
价值永存
1.
The basic prerequisite, the necessary condition, and mam ap proach of possible value perpetuity is the perpetuity of human being itself, the human being s perpetual pursuit of value, and the human being s perpetual memory of historical figures who created great values.
价值永存既是可能的又是必要的。
补充资料：永存
1.长存不灭。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条