提出了一种简化的确定关键路径方法，该方法可分别运用于单代号和双代号网络图中。
This paper put forward a simplified method that can be used on activity on node network and activity on line network to identify the critical path of schedule.
最简单的处理测试用例优先权的方法是关键路径的识别。
The simplest approach to test case prioritization is identification of critical path.
本文在介绍了家电产品回收再利用的实际意义、关键技术后，介绍了解决目前产品回收过程中工艺路径方案优化问题的研究方法。
This paper introduces the real meaning and key techniques of recycling and reusing of products, as well as the method of solving the problem of optimization of recycling processes of products.
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