diff --git a/_posts/2024-12-21-2005.md b/_posts/2024-12-21-2005.md
index 7865be9..175f817 100644
--- a/_posts/2024-12-21-2005.md
+++ b/_posts/2024-12-21-2005.md
@@ -9,8 +9,7 @@ math: true
 [^footnote]
 
 
-$$ Revelle\ Factor = TCO_2  \{ [CO_2]  + [CO_3^{2-}]  \} $$
+$$ Revelle\ Factor = TCO_2  \{ [CO_2]  + [CO_3^{2-}]  \}^{-1} $$
 
-$$ \{   \} $$
 
 [^footnote]:Zhang W, Wang W, Zhong J, et al. Carbon sequestration and decreased CO2 emission caused by biological carbon pump effect: Insights from diel hydrochemical variations in subtropical karst reservoirs[J]. Journal of Hydrology, 2024, 632: 130909.