英语词汇“R-value”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

R-value

noun

The capacity of an insulating material to resist heat flow. The higher the R-value, the greater the insulating power.So, where R-values rate how much heat loss the material resists from passing through it, U-values rate how much heat the component allows to pass through it....

Manufacturers usually represent the energy efficiency of windows in terms of their U-values (conductance of heat) or their R-values (resistance to heat flow).
Don't forget that R-values are determined by material type, thickness, and installed weight per square foot, not by thickness alone.

单词	R-value
释义	R-value noun The capacity of an insulating material to resist heat flow. The higher the R-value, the greater the insulating power.So, where R-values rate how much heat loss the material resists from passing through it, U-values rate how much heat the component allows to pass through it.... Manufacturers usually represent the energy efficiency of windows in terms of their U-values (conductance of heat) or their R-values (resistance to heat flow). Don't forget that R-values are determined by material type, thickness, and installed weight per square foot, not by thickness alone.
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