Dell, which tried to resist cutting its prices, has already seen slower sales growth as low-cost competitor Acer Inc. has stepped up.
随着奉行低价战略的竞争对手宏碁步步紧逼，一直试图坚持不降价的戴尔销售增幅已经放缓。
2
From the reinforced cost management, it analyzed the characteristic of the crude oil unit cost, and the stepped grey model of the crude oil unit production cost was established.
从加强成本管理的角度出发，分析了原油单位生产成本特点，建立了原油单位生产成本的阶跃灰色模型。
3
This article studies the optimal policy of production-inventory model in which time cycling is limited and cost parameter varies in stepped variation, and the definite way of cost parameter.