[经] customary document in proof of delivery of the goods

chuán shàng shōu huò xí guàn yòng píng dān ㄔㄨㄢˊ ㄕㄤˋ ㄕㄡ ㄏㄨㄛˋ ㄒㄧˊ ㄍㄨㄢˋ ㄩㄥˋ ㄆㄧㄥˊ ㄉㄢ