单宁酸

Off dry on the medium bodied palate.Quite herbal but overall lacking any class.Lean and stemmy.

单宁酸味，后味中还交织着一丝淡淡的草药香味，清新爽口。

The conversion film is probably constituted of amorphous and pored alloying tannate chelate.

这种转化膜很可能是由有一定孔隙的非晶态合金单宁酸膜构成.

The biological stability(assessed by AOC), had close relation to tannin value, and was increasing with the tannin value, but it had no velation to the pore size distribution.

滤池出水的生物稳定性与单宁酸值有密切系，单宁酸值越低，出水的生物稳定性越高，与孔径的分布则有系。