人じん口こう静せい態たい

noun

static population

Technical term in demography referring to a population with unchanging size and age structure, often used in theoretical models.

• 人じん口こう静せい態たいのモデルでは、出しゅっ生しょう率りつと死し亡ぼう率りつが一いっ定ていと仮か定ていされる。

  In a static population model, birth and death rates are assumed to be constant.