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单词
closed system
释义
WordReference Random House Unabridged Dictionary of American English © 2024
closed
′
sys
′
tem,
[
Thermodynam.
]
Thermodynamics
a region that is isolated from its surroundings by a boundary that admits no transfer of matter or energy across it. Cf.
open system.
1895–1900
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更新时间:2025/11/20 2:13:27