sure!  

Put the ice cream inside to keep the temperature.

There is a double-layer structure in the middle of the thermos cup, and a vacuum state is drawn between the two layers.

There are two ways for objects to lose heat in the air

1. Heat transfer-the heat conduction of the container, as well as the heat convection of the air. 2.Heat radiation.

Therefore, the thermal insulation cup needs to be designed for the above points:

The vacuum state can avoid heat convection.

The inner layer of the thermos cup is silver, which can reflect back the heat radiated from the inside of the container.

Conversely, if cold liquid is stored in the bottle, the bottle can prevent the external heat from radiating into the bottle.

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