结果表明：紫花苜蓿根系吸水速率与土壤剖面含水量和根重密度密切相关。
The results of this analysis showed a significant correlation of water uptake rate with soil profile water content and root weight density.
该模型除能预报根系吸水的一些水分动态和水势动态外，还能预报有效根密度的时空变化。
The model can predict not only the soil water dynamic profiles and the soil water potential profiles, but the changes of the effective root density with depth and time.
首先，他取来一根嫩竹笋，打通了所有的竹节，接着他又用它从池塘里吸水。
First, he took a young bamboo shoot, blew through it to make the knots disappear, and used it to sip water from the pond.
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