第二部分：对无形资产评估中收益额进行研究，并分别对不同类型无形资产进行收益额分析，并应用几种主要统计分析方法；
The second part makes study on parameters usually used in appraisal of intangible assets as well as income , and makes income amount analysis respectively on intangible assets of various types ;
无形资产收益额