求翻译：信用证是一项独立的文件。结算方式仅以单据为处理对象（有关各方处理的是单据而不是货物、服务及其他的履约行为）。开证行负第一性的付款责任。是什么意思？

Letter of credit is a separate document. Settlement documents only deal with objects (the parties are dealing with documents and not goods, services and other performance behavior). The issuing bank's payment of negative primary responsibility.

Credit is a separate document. Clearing form only to documents for processing object (the parties to address the documents rather than goods, services and other performing acts). The issuing bank for the liability for payment of the first one.

The letter of credit is an item of independent document.(But the settlement way only take the documentary evidence as the processing object related all quarters processing is documentary evidence is not cargo, service and other honors an agreement behavior).Opens the card line to take the first paym

Letter of credit is a separate file. Only by way of settlement documents for processing object (the parties dealing with documents rather than goods, services, and other performance). Primary payment responsibility of the issuing bank.

The letter of credit is an independent file. Form of settlement only target of punishing by document (each side concerned treatment for document rather than goods, service and others behavior of honouring an agreement). The issuing bank shoulders the primary responsibility for payment.