Hauv kev ua liaj ua teb, kev ua qoob loo ntau tshaj plaws yog qhov tseem ceeb tshaj plaws rau cov neeg ua liaj ua teb thiab cov neeg cog qoob loo. Ib qho tseem ceeb ntawm kev ua tiav qhov no yog siv cov chiv zoo, xws li 99% fertilizer qib magnesium sulphate. Magnesium sulfate, tseem hu ua Epsom ntsev, yog cov khoom noj tseem ceeb uas ua lub luag haujlwm tseem ceeb hauv pl ...
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