The survival mechanism of Eucalyptus with high transpiration rate in dry hot valley is for their deep root system that can actively supply water to the leaves.

桉树类树种的蒸腾速率较高，但能生存的主要机理是根系分布深，主动供水能力强，补充了地上部分的水分消耗；

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Adequate root number, deep root system, and efficient root activity per unit of root biomass will be needed for high-yield rice in the future breeding programs.

提出了未来水稻根系育种的一个方向，既适当控制根系的数量，增加根的平均长度，加深根在土壤中的分布，扩大根系的面积以及提高单位根量的根功能。

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Actually, the consistency of the system and method in Hegel's philosophy has many aspects and deep cognitive root and social and historical foundations.

其实，黑格尔哲学体系与方法的一致性是多方面的，并且有深厚的认识论根源和社会历史基础。

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