此策略虽面临部件老化的影响，但是常常可避免因质量再鉴定产生的成本，同时可保持灵活的设备互换性。
The impact of obsolescence is often adopted to avoid the cost of requalification and to maintain the flexibility of equipment interchangeability.
其提供同类部件间的可互换性的同时，减少了配线和安装设备的成本和时间。
Provided the interchangeability of similar components, and reduced the cost and time of installation equipment and cable.
两片专利的车轮和光盘系统，对设备的互换性。
Two piece patented wheel and disc system for interchangeability on equipment.
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