The bills are helpful to analyze the unconditional identification of the goods in america . how to dispose the bills would simply influence the security interests of the goods but not alter the ownership of the goods 在美国，提单对于分析货物的无条件划拨具有一定作用，但对提单的处分方式只影响货物的担保权益，而不影响货物所有权的转移。
