请问your ref 和 our ref

请问your ref 和 our ref 外贸英语中 our ref：（人名） your ref:(人名）.请问这两个ref是什么意思?在什么时候用呢?RT our fax ref.no. 请问Ref是什么意思? Our ref:Dep.B / 3 信用证中 our ref.的用处是什么 英语翻译OFFICE OF THE DIRECTOR GENERALREV E.C.WILLIAMS SAMUEL GFRDIRECT TELEPHONE:234 80269 404 58OUR REF FGN/ FMIU/ 010/ 2010 Your Ref:Date27th Oct 2010 #REF 是什么意思 REF是什么意思? ref是什么意思 REF 是什么意思 ref和out有什么作用 out 和ref用法有什么不同 请问高手这个公式有未来函数吗?var1:=CLOSE>REF(CLOSE,1) AND CLOSE>REF(CLOSE,2);Var2:=REF(Var1,1) AND CLOSE=REF(CLOSE,2);Var3:=REF(Var2,1) AND CLOSE>=REF(CLOSE,1) AND CLOSE=REF(CLOSE,1) AND CLOSE=REF(CLOSE,1) AND CLOSE=REF(CLOSE,1) AND CLO 英语翻译标题：Attn;Beneficairy,发件人：Mike NelsonNATWEST BANK PLC,10 Southwark Street ,London Bridge,London - UK SE1 1TT RC:121878 Our Ref:NTB/WESTMIN/INTER-08 Your Ref:Affidavit:AFX 076GD7B24 Attn;Beneficairy,Your Cash consignment/Monetr Our Ref.No.SR-060810-01 SEE THE TITLETHANK YOU! 请教有关英语信件的格式中是小问题?hina National Light Industrial Products Import & Export Corporation82 Tung An Men StreetBeijing,China January 30,2000 Our Ref.No.Your Ref.No.The Pakistan Trading Company15 Broad StreetKarachi,PakistanD #REF是什么意思i