| 摘要 |
<p>The method involves setting a core (3) preformed along a part of a volume, where the volume defines a part of a volume of an isothermal device e.g. container (1), or a part of volume of a cover (2). The core is formed by a porous material. A film (4) impermeable with gas is positioned at bottom of the core from inside to outside by fixing the film at the bottom of the core and at inside and/or outside of walls of the device. The film is evacuated and sealed, where the film covers concavity of the volume and is returned to be wrapped by an outer side of the core. An independent claim is also included for an isothermal device defining a volume.</p> |
