常見(jiàn)例句雙語(yǔ)例句Clean letters of credit are mainly used in non-trade settlement, while documentary credits are generally used in commodity trade.光票信用證主要用于非貿(mào)易結(jié)算，而在商品貿(mào)易中一般使用跟單信用證付款。 返回 documentary clean credit