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・ Thermal fluctuations
・ Thermal fluids
・ Thermal fracturing in glass
・ Thermal grease
・ Thermal grill illusion
・ Thermal Hall effect
・ Thermal Head
・ Thermal history coating
・ Thermal history modelling
・ Thermal history of the Earth
・ Thermal hydraulics
・ Thermal hydrolysis
・ Thermal imaging camera (firefighting)
・ Thermal immersion circulator
・ Thermal infrared spectroscopy
Thermal insulation
・ Thermal integrity profiling
・ Thermal ionization
・ Thermal ionization mass spectrometry
・ Thermal keratosis
・ Thermal lag
・ Thermal lance
・ Thermal laser stimulation
・ Thermal loop
・ Thermal low
・ Thermal management
・ Thermal management of electronic devices and systems
・ Thermal management of high-power LEDs
・ Thermal manikin
・ Thermal mass


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Thermal insulation : ウィキペディア英語版
Thermal insulation

Thermal insulation is the reduction of heat transfer (the transfer of thermal energy between objects of differing temperature) between objects in thermal contact or in range of radiative influence. Thermal insulation can be achieved with specially engineered methods or processes, as well as with suitable object shapes and materials.
Heat flow is an inevitable consequence of contact between objects of differing temperature. Thermal insulation provides a region of insulation in which thermal conduction is reduced or thermal radiation is reflected rather than absorbed by the lower-temperature body.
The insulating capability of a material is measured with thermal conductivity (k). Low thermal conductivity is equivalent to high insulating capability (R-value). In thermal engineering, other important properties of insulating materials are product density (ρ) and specific heat capacity (c).
== Definition==


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