advance bill meaning in Chinese

• 发货前开出的票据
• 先开汇票

• advance:    vt. 1.进，推进；促进(生长)， ...
• bill:     bill3 n. 1.( ...
• bill in advance:    提前开单

Examples

1. The first part is about advanced bill of lading and antidated bill of lading
   后两部分探讨了海运单和提单发展的新趋势?电子提单。