根据原文可知抗旱性植物和多肉植物的区别就是，抗旱性植物可以从相对干燥的土地中吸收水分，所以。
Droughttolerant plants can even absorb water from relatively dry soil because of theirdeep roots in contrast to succulent plants.
从而提高了植物的抗旱性。
本文根据有关资料及笔者的工作，分析了有关锻炼方法的关键因素及其对植物抗旱性的影响和生理基础。
Based on research results, this paper analyses some key factors of the pre-hardening, effects of this technique on plant growth and its physiological bases.
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