English中文
structure of the Earth /ˈstɹʌktʃəɹ əvə ˈmɪsaɪl ˈwɒn/ n
English · structure of the Earth中文 · 地球结构
Bedeutung：The Earth is formed of three concentric layers: the core, the mantle and the crust; these are separated by transition zones called discontinuities.
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Earth's internal structure

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