covar meaning in English

柯伐合金
科伐尔
科伐铁镍钴共膨胀合金
科瓦铁镍钴合金

In the first part , we analyze the risk and reasons that a securities corporation in china is facing at present , then develops a securities corporation risk control system based on the realities in china by the ways of advanced qualitative management pattern from oversea . in the second part , we consider the existing situations that market risks became a major problem to a securities corporation , we have a method to measure developed market risk by adopting an advanced quantitative model var which is popular internationally , and we focus on studing risk metrics ( var - covar ) application in securities market of china practically . we conclude that var model is useful and effective at controlling market risks in china by our analysis and test
第一部分通过对证券公司风险及风险成因的分析，借鉴国外先进管理模式提出了构建符合中国国情的证券公司风险控制体系，对目前我国证券公司主要业务的风险点及风险管理进行阐述，并佐以案例；第二部分针对市场风险日益成为证券公司主要风险的现状，引入了国际上最广泛使用的市场风险控制方法? ?风险价值法( var ) ，从实用角度重点研究了方差协方差法在我国证券市场的应用，通过实证分析得出了在我国使用var控制市场风险是切实可行的结论。