O-P in rhizosphere soil decreased when exchange acidity and total hydrolytic acidity increased.
根际土壤o - P含量随着土壤交换性酸、水解性总酸度的增高而降低。
As a result, the cation exchange reaction is predominant in the low acidity region, and the salvation extraction becomes appreciable in the high acidity region.
结果表明，在低酸度区萃取主要按阳离子交换反应进行，在高酸度区溶剂化萃取反应则变得明显。
Immediate action shall be taken if the oil is over at its acidity and ion-exchange resin is the most effective way to deal with the acidity of oil.
抗燃油酸度超标后必须及时处理，离子交换树脂是处理抗燃油酸度最有效的方法。
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