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We always confused for the time when infusion,
the infusion bag
can clearly tell you infusion time
and capacity can be converted
to time marked on the bag,
no longer for don't know the time.
College of Science&Technology
Ningbo university
ningbo, China
Liyuan Liu,
College of Science&Technology Ningbo University
Lei Shi ,Huilu Yang
Mengrong Hou
Yangxu Jiang