“foul”: If you describe something as foul, you mean it is dirty and smells or tastes unpleasant. 在这里指的是比较脏的意思，因此这一术语常译为“不洁提单”、“不清洁提单”。它是指货物交运时，其包装及表面状态出现不坚固完整等情况，船方可以批注，即为不清洁提单。承运人在装船时应对承运货物的外表状况负责，如发现货物已经受损或短缺，必须立刻通知托运人修补或换货，或将这种损坏或短缺批注在提单上，否则在卸货港交付货物时，承运人根据提单记载效力的规定，应对损坏或短缺向收货人负赔偿责任。银行在办理结汇时，通常不接受不清洁提单。A receipt for goods issued by a carrier with an indication that the goods were damaged or short in quantity when received.

与之相对应的是清洁提单clean bill of lading。清洁提单是指没有在提单上对货物的表面状况作出货损或包装不良之类批注的提单，它表明承运人在接收/装船时，该货物的表面状况良好。如果承运人对货物表面良好有异议，就加以批注。如（羊毛）“破包”、（新闻纸）“撕破”等。货物的表面状况是不需要用设备检验的，仅需目测。A clean bill of lading is a document that declares there was no damage to or loss of goods during shipment. The clean bill of lading is issued by the product carrier after thoroughly inspecting all packages for any damage, missing quantities, or deviations in quality.

通常船公司的提单，如果不加任何不良批注，就表明该提单是清洁已装船提单，一般客人信用证中都会要求全套的清洁提单，且中国部分银行还会要求提单上带有“CLEAN ON BOARD清洁已装船”的字样。

以下为相关双语示例：

Consignee will only accept clean bill of lading.

收货人只接受清洁提单。

Three originals and three copies of the full set of the clean bill of lading;

全套可转让的清洁海运提单正本和副本各三份。