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u-value
释义
WordReference Random House Unabridged Dictionary of American English © 2024
U-val•ue
(yo̅o̅
′
val′yo̅o̅),
USA pronunciation
n.
Building
a measure of the flow of heat through an insulating or building material: the lower the U-value, the better the insulating ability. Cf.
R-value.
U,
symbol for internal energy 1945–50
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更新时间:2026/7/28 15:31:54