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本文应用计算机模拟的方法讨论了采掘工作面布局(网路结构)及其风量分配和关键路线上分支的通风参数等因素对通风系统总风阻的影响......

This paper investigates a procedure developed and reports on experiments performed to studying the utility of applying a......

We say that a parameter p of directed graphs has the interval property if for every graph G?and orientations of G, p can......

The existing multi-source contour matching studies have focused on the matching methods with consideration of topologica......