重质油中，无论是中性含氮化合物的绝对浓度或是其比值指标都降低，严重影响了原油运移途径的判别。
In heavy oil, not only the absolute concentrations but also the ratio indicators of neutral nitrogen compounds are too low to distinguish the oil migration path.
基础油中磺酸钙的加入使氮化硅的磨损速率得到降低。
The calcium sulfonate additive reduces the wear rate of the materials.
首先考察了碱性氮化物对辽河基础油氧化安定性的影响，其次考察了碱性氮化物对辽河基础油光安定性的影响。
The effects of basic nitrogen compound on the oxidation stability and light stability of Liaohe base oils were investigated.
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