As the filling of mercury in the knaggy pore space made the pore flow channel more uniform, the fractal factor in the mercury ejection process is smaller than that of mercury injection process.

由于压汞过程中的汞对孔隙凸凹的填充，使得孔隙流通通道均匀化，因此和压汞过程相比，退汞过程的分形结构因子普遍较小，即退汞流动通道的均质性增强。

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"Mercury has a thin atmosphere created by the ejection of atoms from its surface, a process that also occurs on our Moon, " Mendillo explained.

BBC: Close up on Mercury