针对单一系统的面向服务的分析与设计。
首先，你要使用针对单一系统的设计部分中描述的方法，设计产品线的所有成员共有的服务。
First, you design services that are common to all members of the product line, using the method described in the design section for single systems.
大带宽无线传输有两个实现途径，一是设计频带更宽的单一系统，一是进行不同系统间的协同设计。
The wide band radio transmission may be implemented in two parallel ways: to design a new system with larger bandwidth; to construct a cooperative system based on existing systems.
如果我有机会重新设计了，我会马上改用辊系统的单一系统。
If I had the opportunity for a redesign, I would convert the system for a single roller system.
如果我有机会重新设计了，我会马上改用辊系统的单一系统。
If I had the opportunity for a redesign, I would convert the system for a single roller system.
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