发行商也正在想办法通过再融资进入真正的长期债券市场，或者向银行申请开立信用证。
Issuers are scrambling to refinance into proper long-term bonds, or asking banks for letters of credit.
备用证的作用和性质与跟单信用证是不同的，但长期以来备用证业务却依附于国际商会关于跟单信用证的国际惯例。
But for a long time, standby business has followed international customs of documentary letters of credit as stipulated by the international Commercial Committee (ICC).
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