1. An assignment is not ineffective as between the assignor and the assignee or as against the debtor or as against a competing claimant, and the right of an assignee may not be denied priority, on the ground that it is an assignment of more than one receivable, future receivables or parts of or undivided interests in receivables, provided that the receivables are described:
1. 应收款符合下列条件之一的，其转让对于转让人与受让人之间、对于债务人或对于竞合求偿人而言并非无效，而且也不得以这是一项以上应收款、未来应收款或应收款组成部分或其未分割权益的转让为由而否定一个受让人权利的优先权：