碱化,成碱性

This delay of dissolution and the dissolution speed depend upon the solution alkal... 溶解滞后和溶解速度与溶液的碱度有关,与树脂膜厚无关。

OBJECTIVE Phyllanthus urinaria L.has many chemical constituents,such as flavonoids,lignans,alkal oids and so on.It has obvious effects on againsting the hepaitis B and little toxic to healthy. 叶下珠含黄酮类、木脂素类、生物碱类、鞣质等多种成分,具有明显的抗乙型肝炎病毒活性及对肝损伤的保护作用,且毒副作用低,是一种值得深入开发的抗乙肝药物。

Saline alkal soil in northwest area 西北地区盐碱地

alkal potassium persulphate oxidation 碱性过硫酸钾氧化

A Study on the Activation of Fly Ash Exited by Alkal 碱对粉煤灰活性激发的研究

Study on Bacterial Salt Tolerance and Enzymatic Characteristic in Saline Alkal Soil of Shaanxi, Ningxia and Inner Mongolia 黄河中上游半干旱区典型盐渍土中细菌耐盐性及产酶特性研究