| 词汇 | asthenosphere |
| 释义 | asthenosphere noun geology specialized uk/æsˈθiː.nə.sfɪər/ us/æsˈθiː.nə.sfɪr/ the asthenosphere [ S ]软流圈 the thin, almost liquid, layer under the hard rock that forms the outer layer of the earth Molten material only forms a small proportion of the asthenosphere. The asthenosphere forms the inner part of the upper mantle. Compare: the atmospherebiosphereexospherehydrosphereionospherelithospheremesospherestratospherethermospheretroposphere Related word: asthenospheric |
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