客户信用证最后一段开出的内容如下，谁能帮忙翻译下，第一次做信用证，看不懂啊

Question

BENEFICIARY'S INVOICE DRAWN FOR THE ADVANCE PAYMENT AMOUNT BEING CLAIMED BY THEM. THIS ADVANCE PAYMENT AMOUNT WILL ONLY BE REMITTED BY US UPON RECIPT OF FUNDS FROM THE L/C APPLICANT WITH INSTRUCTIONS TO REMIT THEM TO THE BENEFICIARY'S BANK WHO FORWARDED THE ABOVE DOCUMENTS IN ACCORDANCE WITH THEIR INSTRUCTIONS MENTIONED ON THEIR COVERING SCHEDULE UPON RECEIPT OF ORIGINAL SHIPPING DOCUMENTS COMPLYING WITH THE TERMS AND CONDITIONS OF THIS CREDIT THE BALANCE AMOUNT OF THIS CREDIT WILL BE REMITTED TO THE NEGOTIATING BANK AS PER THEIR INSTRUCTIONS MENTIONED ON THEIR COVERING SCHEDULE. THE INVOICES FORWARDED WITH THESE DOCUMENTS MUST SHOW TOTAL VALUE OF GOODS LESS (DEDUCTION) OF THE AMOUNT RECEIVED AS ADVANCE PAYMENT. THE SHIPPING DOCUMENTS OF ADVANCE PAYMENT MUST BE RECEIVED BY THE L/C ISSUING BANK WITHIN 120 DAYS FROM THE DATE OF ADVANCE PAYMENT.

Answer 1

付款方式：预付+信用证，这段的内容分两部分，
第一部分“BENEFICIARY'S INVOICE....到第六行的WITH THE TERMS AND CONDITIONS OF THIS CREDIT ” 大意是受益人出具预付款金额的发票，开证行在收到信用证申请人的款项和指示其付款给受益人银行时才会付款，而受益人银行在收到与信用证条款相符的单据后，已经按照受益人的指示将上述单据（预付款需要的单据）随载有指示的附涵寄出。
第二部分“THE BALANCE AMOUNT .....到倒数第三行AS ADVANCE PAYMENT”大意是余款会按照其指示付给议付行，所提交的单据中的发票金额显示总货值减去预付款的金额。
最后一句：在自预付款之日起120天内预付款要求的单据必须到达开证行（被开证行收到）。
个人观点，仅供参考吧！