balenced population

• 稳定的种群

balenced population的用法和样例：

例句

1. A low population is not sufficient to halt a decline.
   低的种群密度不足以立即阻止种群下降。
2. Forested areas sustain almost as high a population as the agricultural sites.
   森林区的种群密度与农业区同样的高。