amortization of intangible asset　

amortization of intangible asset　无形资产摊销　

a amortization is an accounting practice in which companies spread the cost of intangible assets over a period of time.It is similar to the process of depreciation that accountants use for tangible assets.Amortization is often used for assets，such as patents and copyrights，which have a defined life over which they will provide profit to the holder.