因为有水分存在时，氨与油的酸性氧化物作用会生成沉淀。
Because there are water exists, ammonia and oil acid oxide role will generate precipitation.
同其它过氧化物相比，它具有活性氧含量高，水溶液呈弱酸性及能溶于有机溶剂的特点。
It has the advantages of high active oxygen content, weak acidity of the aqueous solution and good solubility in organic solvent in comparison with other solid peroxides.
考察了用酸性、两性和碱性氧化物改性HY分子筛对烷基化反应性能的影响。
Influence of modification with acidic, amphiprotic and basic oxides on alkylation properties of HY molecular sieve was investigated.
结论：碱性催化剂优于路易斯酸性催化剂，金属氧化物催化适合于工业化生产。
CONCLUSION: Basic catalysis is superior to Lewis acid catalysis. Using metal oxide is suitable for industrialization.
目的：探讨酸性神经肽1（BANP-1）对血管性痴呆（VD）小白鼠脑内超氧化物歧化酶（SOD）、丙二醛（MDA）和一氧化氮（NO）的影响。
Objective:To probe the changes of SOD, MDA and NO in the brains of VD mice by bovine acidic neuropeptide-1(BANP-1).
作为粘土酸，氧化物表面的酸性较弱，其表面质子逐步解离，使滴定曲线不出现突跃。
As clay acids, the proton on oxide surfaces dissociated gradually, so the titration curves showed no inflexions.
二氧化硫和氨氧化物引起酸性降雨，常称为酸雨。
Sulfur dioxide and nitrogen oxides also cause acidic precipitation, commonly called acid rain.
优选的强酸性溶液是酸过氧化物溶液。
A preferred strong acidic solution is an acid peroxide solution.
结论：巨噬细胞内脂质过氧化物水平与酸性磷酸酶活力呈负相关，且可被免疫抑制剂和免疫激活剂所调节。
CONCLUSION: the level of LPO was negatively related to the activity of ACP, and it was regulated by immunomodulators.
介绍用酸性尿素溶液作吸收剂，吸收硝酸尾气中氮氧化物的净化方法。
The method for removing nitrogen oxides in the effluent gas from manufacturing nitric acid by using acidic urea solution as an absorbent to absorb the nitrogen oxides is introduced.
活力与超氧化物歧化酶、酸性磷酸酶的活性呈正相关。
The seed viability was correlated with SOD and acid phosphates activity.
活力与超氧化物歧化酶、酸性磷酸酶的活性呈正相关。
The seed viability was correlated with SOD and acid phosphates activity.
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