3H-2000PWMulti-stationsGravimetricMethodSteamAdsorptionInstrument 3H-2000PWmulti-stationgravimetricmethodsteamadsorptioninstrumentisakindofresearch-levelanalyticalinstrument,itusesmicrobalancetomeasuretheweightdifferenceofthesamplebefore andafteradsorptionanddesorptionunderrelativedifferentialp…