The era of urban rail transit has the advantages of large traffic volume, punctuality, safety, fast speed and energy saving, but at the same time, because of the closed rail transit environment, dense personnel, complexity and high mobility. In the event of accidents and emergencies, personnel evacu

In order to avoid virus infection, Shanghai Eastimage insists on the update and maintenance of x-ray security inspection equipment. As the epidmic situation is alleviated, the flow of people begins to become dense. Ports in major cities have also opened up traffic, but at the same time, The re

Half of 2020 has passed, and in January this year, the new coronavirus pneumonia has raided the Chinese economy. Within a few weeks, many countries have significantly reduced or even closed routes to and from China. The financial market reacted violently, and the economic slowdown also led to a decl