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rarefaction [rɛəri'fækʃən]
基本释义
- n. 变成稀薄,稀薄化,稀薄
词形变化
- 形容词:rar'e·fac'tive
英英解释
1个名词解释
- a decrease in the density of something
[例]- a sound wave causes periodic rarefactions in its medium
- a decrease in the density of something