field population的用法和樣例：
例句
- Study on the Natural Population Life Table of Pyla sp.
喜樹幽斑螟自然種群生命表的研究。 - Studies on the life table showed that key influencing factors on the dynamics of natural population of Rhopalosiphum padi Linnaeus were weather and natural enemies.
試驗表明，影響禾穀縊管蚜自然種群變動的主要因素是氣候和天敵。 - Results Established movements lifes table of wild Polygonum aviculare population.
結果編製出扁蓄野生種群的動態生命表。
