| 摘要 |
An object such as an aircraft in flight is obscured from infrared detection when viewed from an external viewing location. The method includes providing the object having an externally viewable hot region associated therewith, wherein the hot region has a temperature greater than 150° C. A source of an obscuring agent is provided, wherein the obscuring agent comprises a mixture of carbon dioxide gas and water vapor. The obscuring agent is ejected from a dispensing location so as to flow between the hot region and the external viewing location. The obscuring agent has a temperature of less than that of the hot region.
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