Based on practical work, this essay explains the essence of value engineering principle, the necessity and the method of bidding in equipment purchasing.
结合实际工作，阐述了招标采购的必要性、价值工程原理的含义以及运用价值工程原理，进行设备公开招标的方法。
It presumed that custom value is the main factor of impulsive buying, and the succeeding evaluation is based on the customers 'value pre - and post-purchasing.
认为顾客价值是决定冲动性购买的主要因素，冲动性购买者的购后评价也是基于购买前和购买后的顾客价值评价作出的。
This challenge is a result of the fact that many firms are reconfiguring the value chain to generate additional value by purchasing through suppliers' Web-based business models.
造成这种挑战结果的是许多公司正在重组价值链通过与网络供应商进行交易的模式已获得额外价值的事实。
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