depth bellows 中文意思是什麼
depth bellows
解釋
深波紋管-
There are six parts in this dissertation as bellows : part one firstly reviewing the available literatures on the issue of supply and demand in cost information. this part mainly make a comprehensive in - depth research on theoretical basis and methodological basis of cost information, and simultaneously making an
信息經濟學的有關理論對我們研究成本信息供需奠定了堅實的基礎,成本信息首先是屬于信息的范疇,它跟其它信息有同樣的特點及其衡量標準,成本信息價值的大小,一般是以信息對決策者的各種有用程度來區分的。
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