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单词
polyfoam
释义
WordReference Random House Unabridged Dictionary of American English © 2024
pol•y•foam
(pol
′
ē fōm′),
USA pronunciation
n.
Chemistry
a rigid, semirigid, or rubbery foam composed of minute bubbles of air or carbon dioxide embedded in a polymer matrix, often polyurethane: used in mattresses, padding, insulation, etc.
poly
- +
foam
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更新时间:2025/7/24 8:55:38