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。
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.
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。
O-P in rhizosphere soil decreased when exchange acidity and total hydrolytic acidity increased.
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。
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.
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