They require letters of credit guaranteeing payment.

银行要求提供信用证书作为付款保证。

Credit guarantees by Britain, France and other countries are worth 15% of GDP.

英国、法国和其他国家的信用担保占GDP的15%。

Sweden will provide electricity companies credit guarantees of up to 23 billion U. S. dollars to tackle the problems on the electricity exchange.

瑞典将为电力公司提供高达 230 亿美元的信贷担保，以解决电力交易所的问题。