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Hot or Cold / cup

Hot or Cold

The cup has a special structure,that is,it is not the same as the thickness of the wall
of the cup.Half of the cup wall is relatively thin,half is relatively thick.When the weather
is cold,when you pour a glass of hot water on the table,always want to warm hands,
use it at this point,you can hold the surface of tne cup wall thin for heating.When the
weather is hot,avoid the cup hot,you hold the cup wall thickness of the part,and contect
surface can be thinner to judge if the water is suitable for drinking.

University

Anhui University of Technology

Anhui University of Technology
Maˊanshan, China

Yujuan Cheng,
Anhui University of Technology