The pore diameter was very tiny so that it could prevent hydrotropic solution entering into the pore.
The pore diameter was very tiny so that it could prevent hydrotropic solution entering into the pore.
二是孔隙的尺寸很小，水溶液不能渗入到孔隙，不能到达基体。
The pore diameter was very tiny so that it could prevent hydrotropic solution entering into the pore.
二是孔隙的尺寸很小，水溶液不能渗入到孔隙，不能到达基体。