In accordance with the characteristics and coverage requirement of path coverage test as well as the graph theory, this paper presents a new program control flow diagram model.
针对路径测试的要求及其特点，结合图论的概念，提出了程序控制流程图的一种表示方法。
Gas flow in nanoscale space has distinct characteristics compared with that in conventional macro-scale, due to the influence of space dimension on gas mean free path.
纳米尺度下的气体流动具有不同于常规尺度的规律，其中重要的特征是纳米间隙中气体分子自由输运行程将减小，进而影响气体的输运规律。
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