中氣 zhōngqì stamina Origin Definitions Defs Strokes Stroke Words Sentences Sents 中气层 zhōngqìcéng mesosphere The layer of the Earth's atmosphere located between approximately 50 and 85 kilometers above the surface; the temperature in this layer decreases as altitude increases.中气层顶 zhōngqìcéngdǐng mesopause the boundary region between the mesosphere and the thermosphere