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in collective life prisons, how to ensure that "residents" do not break out of infectious diseases is also a headache. after all, there are so many p...
the development of the times has brought about a surge in population, a peaceful social environment and developed medical conditions, which have exten...
the x-ray machine can be used to check a variety of items. can the x-ray machine also check out drugs? so what is the price of x-ray security scree...
as a frontier security inspection machine guarding the frontier, it bears a heavy responsibility. people put the heavy task of defending the frontier ...
what is a security gate? security door also refers to metal detection door, which is specially used to detect whether metal articles are hidden on peo...
it is said that the prison vehicle access inspection system is a security inspection equipment without radiation. is it really like this? it can be fa...