transferable document meaning in English

可转让单据

Electronic sending of commercial information and transferable document need authenticity , certitude , integrity . secrecy and validity , which serve as the basic of the existance and development of e - b / l , and than need to be solved firstly when we try to substitude the traditional trade ways with electronic ones
安全可以包括技术安全和法律安全，商业信息和可转让的单证的电子传递需要充分保证其真实性、确定性、保密性和合法有效性。这是电子提单制度存在和发展的前提条件之一，也是电子手段代替传统贸易方式所首先要解决的问题。