“transition zone”的概念、定义、翻译、参考文献-科学参考

单词	transition zone
释义	transition zone [tran`zish·ǝn ´zōn] ^{FLUID MECHANICS} Those conditions of fluid flow in which the nature of the flow is changing from laminar to turbulent. ^GEOLOGY 1. A region within the upper mantle bordering the lower mantle, at a depth of 246-600 miles (410-1000 kilometers), characterized by a rapid increase in density of about 20% and an increase in seismic wave velocities. 2. A region within the outer core, transitional to the inner core.
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