单据提供的最大便利就是:将完整的贸易过程分解为离散的要素断点,再把这些断点分别抽象成书面文件使之具有法律效力。单据的诸多便利,使得银行不用全然依赖贸易商的道德,也不用介入具体贸易,就可以对贸易进行重点控制,从而产生了代表独立银行信用的信用 Documents provide the greatest convenience is: the complete trade process is broken down into discrete elements breakpoint, and then abstract these breakpoints into written documents so that it has the force of law. The many conveniences of the documents make it possible for banks not to rely solely on the morality of traders nor to intervene in specific trade in order to give priority to control over trade and thereby generate credit on behalf of independent bank credit