Terms containing duplicate invoice

Subject	English	Chinese
econ.	A duplicate invoice has been sent to them	已送给他们一份发票副本
tech.	duplicate copy of invoice	发票副本
interntl.trade.	duplicate invoice	发票副联本
interntl.trade.	duplicate invoice	发票副联
interntl.trade.	duplicate invoice	发货副本
econ.	duplicate invoice	收货到单
econ.	duplicate invoice	发票副本
tech.	duplicate invoice	发票副单
interntl.trade.	invoice duplicate	发票副本