工程师能更好的相互之间协调工作并且在需要的时候请求或者提供后备支援。
Engineers are better able to coordinate work with one another and can request or provide backup help when needed.
尽管我们没有办法让一些工程师作为另一些的后备，让某些工程师部分掌控其它模块也是可能的。
Although we have no way to make some engineers backup the other engineers, it is possible that some engineers are partly in charge of other modules.
本文在结合IEEE标准以及国内外的工程实践的基础上，对后备系统进行了深入地研究，给出了后备系统的定义、功能、工作原理、设计要求。
Based on IEEE standard and domestic and overseas engineering practice, the fallback system is studied in detail. The definition, function, operational principle and design specification are presented.
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