| 摘要 |
Cold-preserving and moistening product consisting of a metered mass (14) of polymer hydrogel capable of absorbing and binding a mass of water at least one order of magnitude greater than the said metered mass, this metered mass being confined in an enclosure (10) of impervious material with a volume that is at least equal to that of the mass of water thus absorbed, perforations (13) made in the enclosure making the latter permeable to fluids while maintaining the confinement of the said mass of polymer hydrogel. <IMAGE>
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