Keywords: yakakwira sarufa coke, yakaderera sarufa coke, mutengo optimization, sulfur yemukati Logic: pane gaka rakakura pakati pemutengo wepamba wepamusoro uye wakaderera sulfur petroleum coke, uye mutengo wakagadziridzwa nekushandurwa kwe index hauna kuenzana chikamu, iyo yakakwirira yesarufa yemukati yechigadzirwa, iyo ...
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