“the core and mantle system”的概念、定义、翻译、参考文献-科学参考

单词	the core and mantle system
释义	the core and mantle system Encyclopedia 理学[地理系统]释 the core and mantle system地核和地幔系统地球内部圈层的重要组成部分，其中一个重要组成部分是地核和地幔系统。过去的25亿年里，地核物质一直在向地幔的底部转移。核幔边界层连接了下地幔和外核两大系统，是地核和地幔生物物质较为活跃的化学反应区。
随便看	narrow gap welding narrow gorge Narrow-headed vole narrow heritability narrow ideal class narrow illumination narrowing narrow-internal focus narrow lane observation narrow-line radio galaxy narrow-line region narrow-line spectrum narrow linewidth narrow linewidth fiber laser narrow linewidth laser source narrowly of phlegm and fluid narrow money narrow predicate calculus narrow resonance narrow sense narrow sense of information economy narrow-size particle group narrow slit drawing narrow tenosynovitis narrow topology

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