It then looks at each transaction to determine whether an accid attribute is present.

它然后查看每个交易，判断是否存在accid属性。

youdao

The accid attribute will be the unique transaction id number that the accounting system assigns to that transaction.

accid属性将是会计系统分配给这个交易的惟一交易id号。

youdao

The accid attribute will be the unique transaction id number that the accounting system assigns to that transaction.

accid属性将是会计系统分配给这个交易的惟一交易id号。

youdao