鸟嘌呤：嘌呤类的有机化合物，常称为碱基，包含二个环，各含氮原子和碳原子，还有一个氨群。
Guanine: organic compound of the purine family often called a base consisting of two rings each containing both nitrogen and carbon atoms and an amino group.
凝汽器铜管的氨腐蚀，是造成凝汽器泄漏和给水含铜的重要原因。
Ammoniac Corrosion of condenser copper tubes is the major cause of condenser leakage and copper content in boiler feed water.
讨论了它们的结构和催化性能，并分析了含钒催化剂上氧化和氨氧化的一般机理。
Their structure and catalyst properties are discussed. Common feature and differences in mechanism of oxidation and ammoxidation are analyzed.
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