单词 | rarefaction |
释义 | rarefactionnoun rar·e·fac·tion ˌrer-ə-ˈfak-shən 1 : the action or process of rarefying 2 : the quality or state of being rarefied 3 : a state or region of minimum pressure in a medium traversed by compressional waves (such as sound waves) rarefactional ˌrer-ə-ˈfak-shnəl adjective -shə-nᵊl |
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