physiological natality

常见例句

雙語例句

• The effect of crowding and physiological stress and shortage of food resources were the main reasons for the decline of population natality and yearly increase rate.
  種群密度過高産生的擁擠傚應和食物資源不足是造成種群出生率和年度增長率下降的主要原因。
返回 physiological natality