Based on these, the deficiency and research directions of further utilization of fly ash are presented.
在此基础上指出了粉煤灰精细利用的不足和研究方向。
Exploring the utilization of different fraction of P by different plants which could secrete different LMWOA under the condition of P-deficiency.
栽种能够分泌不同有机酸的植物，考察不同植物对土壤不同组分无机磷的活化利用情况；
It could overcome the irrigation difficulty of water deficiency throughout history to popularize the technique of rainwater accumulation and utilization.
雨水集流利用工程的推广，解决了干旱山区有史以来无水灌溉的难题。
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