1) inefficient security
无效证券
2) security efficiency
证券效率
3) bearer security
无证明证券
4) riskfree securities
无风险证券
1.
Under the assumption that the rates of return of portfolio are normal random variables,a mean-VaR portfolio model including riskfree securities under constraint of investment chance is established.
在证券收益率服从正态分布的前提下,建立了包含无风险证券投资组合的机会约束下的均值—VaR模型,讨论了最优解的存在性和惟一性,并在均值—VaR模型有效边界的基础上引入机会约束,从而得到了最优解均值的解析表达式。
5) dematerialised securities
无纸化证券
1.
The legal status of dematerialised securities is beginning to be established in finance legal system in every country.
证券无纸化对证券市场的发展起了重大的推动作用,各国在金融法律制度中开始确立无纸化证券的法律地位。
6) bearer securities
无记名证券
1.
Dematerialised securities still has the basic attributes of the securities and securities accounts did not change the nature of the bearer securities just using the exchange technology of the registered securities.
无纸化证券仍然具有证券的基本属性,证券账户也并未改变无记名证券的性质,只是借用了记名证券的交易技术。
补充资料：肺泡无效腔
肺泡无效腔
alveolar dead space
在病理条件下，部分肺泡缺乏，甚至无血流灌注，这部分肺泡气体交换下降，甚至无气体交换。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条