| 摘要 |
<p>A freeze indicating device is disclosed. The device indicates that it has been subjected to a freezing temperature and includes a vessel having an open end, the vessel containing an amount of a liquid that expands at or near the freezing temperature and sealing means for sealing the open end of the vessel, wherein the sealing means interacts with the liquid upon freezing of the liquid and undergoes displacement with respect to the vessel to indicate that the liquid has frozen.</p> |
