clean bill for collection
[经] 无跟单托收汇票
clean bill of draft
[经] 不附带条件的汇票, 不附提单的汇票
clean bill of exchange
clean bill of health
[经] 船内安全报告, 健康证明书
clean bill of lading
[经] 不附带条件的提单, 清洁提单
clean billbought
[经] 购光票