求翻译：信用证方式有三个特点： 　　1.信用证是一项自足文件。信用证不依附于买卖合同，银行在审单时强调的是信用证与基础贸易相分离的书面形式上的认证； 　　2.信用证方式是纯单据业务。信用证是凭单付款，不以货物为准。只要单据相符，开证行就应无条件付款； 　　是什么意思？

The letter of credit has three features: a letter of credit is a self-contained file. Letter of credit is not attached to a contract for the sale, emphasized by the bank in the trial of a single phase separation of a written formal certification by the letters of credit and basic trade; letter of cr

Credit There are 3 Special features: 1.LC is a self-sufficiency. credit sale contract is not dependent on the bank, click on the basis of trade credit is the separation of the written form of the certificate; 2 credit is purely . operation documents. It is credit voucher, payment for the goods to. A

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Letter of credit has three characteristics: 1. the letter of credit is a self-contained file. Letters of credit are not attached to the sale contract, emphasized by the Bank in the form is letters of credit and trade on the phase separation of the written form the basis of certification; 2. letter o

The letter of credit way has three characteristics: 　　1. letters of credit are an item of self sufficient document.The letter of credit does not attach in the contract of sales, the bank when examines the list emphasizes in the written form authentication which is the letter of credit and the founda