| 单词 | u-value |
| 释义 | U-value[ yoo-val-yoo ] / ˈyuˌvæl yu / nouna measure of the flow of heat through an insulating or building material: the lower the U-value, the better the insulating ability. Compare R-value. Origin of U-value1945–50; U, symbol for internal energy Words nearby U-valueUut, Uuu, UV, UVA, Uvalde, U-value, uvarovite, UVB, UV Ceti star, uvea, Uvedale Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 |
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