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We often feel tired when we are waiting for a plane or train for a long time on the journey.People will usually sleep in chairs, but this will seriously affect the health of the cervical spine, will not get a good rest.Many people buy U-shaped pillows and blindfold so that they can take a short rest when they feel sleepy.But it's going to cause a lot of trouble carrying around and sorting it out.For this reason, it is necessary to install some intelligent machines with U-shaped pillows at the airport.
of Henan normal University