Aiming to solve the safety problems of high-speed railway operation and management. one new method is urgently needed to construct on the basis of the rough set theory and the uncertainty measurement theory. The method should carefully consider every factor of high-speed railway operation that realizes the measurement indexes of its safety operation. After analyzing the factors that i... https://www.bekindtopets.com/deal-find-Equi-Jec-6-best-super/