| 摘要 |
A block like unit of foamed or cellular plastics is used. The top structure has cavities for receiving an unpressurised liquid cooling medium that evaporates to a gaseous state. The liquid emerges into the container to keep the contents at a predetermined temperature. The cavities for the liquid cooling medium are formed directly in the foamed or cellular plastics and communicate via a liquid trap with output channels opening out at the underside of the block like unit. Filler openings are arranged to allow gravity filling of the cavities.
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