field population的用法和樣例：
例句
- Study on the Natural Population Life Table of Pyla sp.
喜樹(shù)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，影響禾谷縊管蚜自然種群變動(dòng)的主要因素是氣候和天敵。 - Results Established movements lifes table of wild Polygonum aviculare population.
結果編制出扁蓄野生種群的動(dòng)態(tài)生命表。
