基本解釋[經(jīng)濟(jì)學(xué)]光單信用証英漢例句雙語例句Clean letters of credit are mainly used in non-trade settlement, while documentary credits are generally used in commodity trade.光票信用証主要用於非貿(mào)易結(jié)算,而在商品貿(mào)易中一般使用跟單信用証付款。documentary clean credit更多例句專業(yè)釋義經(jīng)濟(jì)學(xué)光單信用証