ETNCOCA²²⁹⁵⁴⁹ 基本例句 =erythrityl tetranitrate 赤藓醇四硝酸酯 An ETN is a debt security issued by an index provider or a bank and traded on the market; an ETV is similar, but the debt issuer is a special- purpose vehicle. ETN是指数提供商发行或者是通过在市场交易的债务证券； ETV与之相似，但是这种债务发行者是特殊目的机构。 ecocn