保兑信用证 confirmed credit; confirmed letter of credit (confirmed l/c); confirmedlc; confirmedletterofcredit; cumulative letter of credit
保证信用证 confirmed leeter of credit; guaranteed letter of credit
备用信用证 slc standby lc; stand - by l/c; stand letter of credit; stand-by l/c, standby letter of credit; standby credit;standby l/c; standby letters of credit; standby l/c