精选优质文档-倾情为你奉上工程经济英文缩写I:利息 Interest 大写的I和小写的i都是:interest,但是大写I 是指利息,小写i是利率F:还本付息总额 FinalP:本金 PrincipalA:年金 AnnuityCO: 现金流出 Cash OutflowCI: 现金注入 Cash InflowROI:总投资收益率 Return On InvestmentEBIT:年息税前利润 Earnings Before Interest and TaxesTI:技术方案总投资 Total InvestmentROE:资本金净利润率 Rate of Return on Common Stockholders EquityNP: 年净利润 Net ProfitEC:技术方案资本金 Equity CapitalFNPV:财务净现值 Financial Net Present ValueFIRR:财务内部收益率 Financial Internal Rate of ReturnICR: 利息备付率 Interest Co