| 摘要 |
A hollow passageway (30) in an industrial machine, the hollow passageway (30) being configured to transport a fluid coolant through a space that during operation resides at a significantly higher temperature than a desired temperature of the fluid coolant, the hollow passageway (30) comprising an outer surface that substantially has an emissivity coefficient less than about 0.1. The hollow passageway (30) may include an inner channel (32) bound by a wall (34) and, covering the outer surface of the wall (34), an outer surface coating (36) that is formed with a material that provides the outer surface that substantially has an emissivity coefficient of less than about 0.1.
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