W.D.V. b/f= Written Down Value Brought Forward(承前减计价值)I.A.=Intangibal Asset (无形资产)A.A.=Activity Accounting (作业会计)W.D.V.c/f=written down value carried forward (减计价值结转)F.L.= Long Term Financing Cost(长期筹资费用率)
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