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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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