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The conceptual design of lifebuoys is intended to take place
at the beach Outside and take in an emergency lifesaving
first aid equipment.Lifebuoy for help people see the first reaction would be to
enter into the life-saving notched circle.In the panic will look
pulling matter，avoid free pulled lifeguard caused two
drowning.You can call for help if the person is a woman or
child is short arm soft grip the front handle,On the contrary,
the hand can grip through holes catch hole inside or arm into
the through hole.Lifeguards will loose after soft noose tight
waist or shoulder oblique sleeve swim to shore.
Chengdu University of Technology