《外贸邦小组资料整理大全》的英语篇中--翻译问题

在外贸邦的《外贸邦小组资料整理大全》的英语篇中有两句看了有些疑惑，请高手解答：

原文：
(1)in reimbursement, we shall authorize your beijing bank of china head office to debit our head office rmb yuan account with them, upon receipt of relative documents
偿付 法，我行到有关单据后，将授权你北京总行借记我总行在该行立的帐 户

(4)in??reimbursement,??please claim from our rmb￥ account held with your banking department bank of china head office beijing with the amount of your negotiation
偿 付法，请在北京总行我帐户中索回你行议付之款项

假设中文是对的，那么：
第一句 的 beijing bank of china head office，我猜想应该是 bank of china beijing??head office 吧？
还有 第一句的 debit our head office rmb yuan account，我猜想应该是 debit your head office rmb yuan account 吧？
第二句的 held with your banking department bank of china head office beijing with the amount of your negotiation ，我猜想应该是 held with our banking department bank of china head office beijing with the amount of your negotiation

求指导。