该设计方案已经开始分步实施。
设施空置时间越长，分步实施越有利。
The longer the idling time of facilities, the beneficial the adoption of multi - step construction.
主要提出了制订电子商务战略的基本思想，即总体设计，分步实施；
The fundamental thought of drawing up E-business strategy is overall design and step-by-step implementation.
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